.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ArrayBytesToStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
mov       edx,[rdx+8]
 
add       edx,edx
 
mov       rcx,rsi
 
call      qword ptr [7FF9B310C150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       edi,edi
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+280]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
lea       rcx,[rcx+r8+10]
 
mov       r8,1EA95400428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,22B272C78F0
 
call      qword ptr [7FF9B3044810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L01
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L02
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L02
 
M00_L01
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L02
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FF9B310CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,edi
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30FE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2DC7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FF9B2D24000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FF9B38BEA78]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FF9B2D24000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33BF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F2D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FF9B2D24000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33BF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F2D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,81A07C3BDBAE
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FF9B3044228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      00007FF9B2E71E60
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,81A07C3BDBAE
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FF9B301FD20]
 
mov       rcx,81A07C3BDBAE
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2FEF8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FF9B2FEF360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FF9B38BC018]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,1EA95400298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FF9B384C720]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FF9B3846508]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FF9B388D068]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FF9B384C828]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FF9B2F2C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,1EA95405B80
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FF9B3187550]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,81A07C3BDBAE
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FF9B301FE40]
 
mov       rcx,81A07C3BDBAE
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M03_L03
 
test      r8b,18
 
jne       short M03_L01
 
test      r8b,4
 
je        short M03_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M03_L00
  
ret
 
M03_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M03_L00
 
M03_L02
  
test      r8,r8
 
je        short M03_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M03_L06
 
jmp       short M03_L00
 
M03_L03
  
cmp       r8,40
 
ja        short M03_L07
 
M03_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M03_L11
 
M03_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M03_L00
 
M03_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M03_L00
 
M03_L07
  
cmp       r8,800
 
ja        short M03_L10
 
mov       r9,r8
 
shr       r9,6
 
M03_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M03_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M03_L04
 
jmp       short M03_L05
 
M03_L09
  
cmp       rcx,rdx
 
je        near ptr M03_L00
 
M03_L10
  
jmp       qword ptr [7FF9B2F25B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M03_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M03_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M04_L03
 
cmp       r8d,esi
 
jl        near ptr M04_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M04_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M04_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M04_L00
  
cmp       ebp,r10d
 
ja        near ptr M04_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M04_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FF9B310CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M04_L07
 
M04_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M04_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2D24000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FF9B33BF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F2D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L04
  
test      eax,eax
 
jne       short M04_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M04_L00
 
M04_L05
  
call      qword ptr [7FF9B306E9D0]
 
int       3
 
M04_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M04_L02
 
M04_L07
  
call      qword ptr [7FF9B306E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M05_L03
 
call      00007FF9B2E71E60
 
mov       rsi,rax
 
M05_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M05_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M05_L02
 
cmp       [rdx+8],r8d
 
jb        short M05_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M05_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M05_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2D24000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33BF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F2D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L03
  
mov       rax,22B272B0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ArrayBytesToStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
mov       edx,[rdx+8]
 
add       edx,edx
 
mov       rcx,rsi
 
call      qword ptr [7FF9B30DC150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       edi,edi
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+280]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
lea       rcx,[rcx+r8+10]
 
mov       r8,1E66C800428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,226FE5478F0
 
call      qword ptr [7FF9B3014810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L01
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L02
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L02
 
M00_L01
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L02
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30DCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,edi
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30CE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2D97738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FF9B2CF4000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FF9B388E658]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FF9B2CF4000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B338F3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2EFD470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FF9B2CF4000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B338F888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2EFD470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,4097C240AAF9
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FF9B3014228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      00007FF9B2E41E60
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,4097C240AAF9
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FF9B2FEFD20]
 
mov       rcx,4097C240AAF9
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2FBF8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FF9B2FBF360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FF9B3887B58]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,1E66C800298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FF9B381C720]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FF9B3816508]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FF9B385CD38]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FF9B381C828]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FF9B2EFC210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,1E66C805B80
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FF9B3157550]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,4097C240AAF9
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FF9B2FEFE40]
 
mov       rcx,4097C240AAF9
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M03_L03
 
test      r8b,18
 
jne       short M03_L01
 
test      r8b,4
 
je        short M03_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M03_L00
  
ret
 
M03_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M03_L00
 
M03_L02
  
test      r8,r8
 
je        short M03_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M03_L06
 
jmp       short M03_L00
 
M03_L03
  
cmp       r8,40
 
ja        short M03_L07
 
M03_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M03_L11
 
M03_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M03_L00
 
M03_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M03_L00
 
M03_L07
  
cmp       r8,800
 
ja        short M03_L10
 
mov       r9,r8
 
shr       r9,6
 
M03_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M03_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M03_L04
 
jmp       short M03_L05
 
M03_L09
  
cmp       rcx,rdx
 
je        near ptr M03_L00
 
M03_L10
  
jmp       qword ptr [7FF9B2EF5B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M03_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M03_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M04_L03
 
cmp       r8d,esi
 
jl        near ptr M04_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M04_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M04_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M04_L00
  
cmp       ebp,r10d
 
ja        near ptr M04_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M04_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FF9B30DCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M04_L07
 
M04_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M04_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2CF4000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FF9B338F6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2EFD470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L04
  
test      eax,eax
 
jne       short M04_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M04_L00
 
M04_L05
  
call      qword ptr [7FF9B303E9D0]
 
int       3
 
M04_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M04_L02
 
M04_L07
  
call      qword ptr [7FF9B303E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M05_L03
 
call      00007FF9B2E41E60
 
mov       rsi,rax
 
M05_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M05_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M05_L02
 
cmp       [rdx+8],r8d
 
jb        short M05_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M05_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M05_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2CF4000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B338F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2EFD470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L03
  
mov       rax,226FE530008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ArrayBytesToStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
mov       edx,[rdx+8]
 
add       edx,edx
 
mov       rcx,rsi
 
call      qword ptr [7FF9B311C150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       edi,edi
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
mov       rcx,[rbx+280]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
lea       rcx,[rcx+r8+10]
 
mov       r8,20BCA000428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,24C4FF978F0
 
call      qword ptr [7FF9B3054810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L04
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
M00_L01
  
mov       [rsi+18],ebp
 
M00_L02
  
inc       edi
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,edi
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FF9B310E778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbp,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbp+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       r8d,r8d
 
mov       [rbp+8],r8
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L04
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L01
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B311CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M00_L02
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2DD7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FF9B2D34000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FF9B38CEA78]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FF9B2D34000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33CF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F3D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FF9B2D34000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33CF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F3D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,80E32C6A77B6
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FF9B3054228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      00007FF9B2E81E60
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,80E32C6A77B6
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FF9B302FD20]
 
mov       rcx,80E32C6A77B6
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2FFF8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FF9B2FFF360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FF9B38CC018]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,20BCA000298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FF9B385C720]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FF9B3856508]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FF9B389D068]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FF9B385C828]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FF9B2F3C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,20BBE003B88
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FF9B3197550]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,80E32C6A77B6
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FF9B302FE40]
 
mov       rcx,80E32C6A77B6
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      00007FF9B2E81E60
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2D34000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33CF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F3D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,24C4FF80008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M04_L03
 
test      r8b,18
 
jne       short M04_L01
 
test      r8b,4
 
je        short M04_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M04_L00
  
ret
 
M04_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M04_L00
 
M04_L02
  
test      r8,r8
 
je        short M04_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M04_L06
 
jmp       short M04_L00
 
M04_L03
  
cmp       r8,40
 
ja        short M04_L07
 
M04_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M04_L11
 
M04_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M04_L00
 
M04_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M04_L00
 
M04_L07
  
cmp       r8,800
 
ja        short M04_L10
 
mov       r9,r8
 
shr       r9,6
 
M04_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M04_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M04_L04
 
jmp       short M04_L05
 
M04_L09
  
cmp       rcx,rdx
 
je        near ptr M04_L00
 
M04_L10
  
jmp       qword ptr [7FF9B2F35B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M04_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M04_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M05_L03
 
cmp       r8d,esi
 
jl        near ptr M05_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M05_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M05_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M05_L00
  
cmp       ebp,r10d
 
ja        near ptr M05_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FF9B2F35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M05_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FF9B311CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M05_L07
 
M05_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FF9B2F35B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M05_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2D34000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FF9B33CF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F3D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L04
  
test      eax,eax
 
jne       short M05_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M05_L00
 
M05_L05
  
call      qword ptr [7FF9B307E9D0]
 
int       3
 
M05_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M05_L02
 
M05_L07
  
call      qword ptr [7FF9B307E9E8]
 
int       3
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ArrayBytesToStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
mov       edx,[rdx+8]
 
add       edx,edx
 
mov       rcx,rsi
 
call      qword ptr [7FF9B30FC150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       edi,edi
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+280]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
lea       rcx,[rcx+r8+10]
 
mov       r8,145D1400428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,186632F78F0
 
call      qword ptr [7FF9B3034810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L01
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L02
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L02
 
M00_L01
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L02
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,edi
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30EE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2DB7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FF9B38AE9E8]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33AF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F1D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33AF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F1D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,0FF6BEF3B5FF7
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FF9B3034228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      00007FF9B2E61E60
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,0FF6BEF3B5FF7
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FF9B300FD20]
 
mov       rcx,0FF6BEF3B5FF7
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2FDF8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FF9B2FDF360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FF9B38A7D98]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,145D1400298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FF9B383C720]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FF9B3836508]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FF9B387D068]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FF9B383C828]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FF9B2F1C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,145D1405B80
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FF9B3177550]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,0FF6BEF3B5FF7
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FF9B300FE40]
 
mov       rcx,0FF6BEF3B5FF7
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M03_L03
 
test      r8b,18
 
jne       short M03_L01
 
test      r8b,4
 
je        short M03_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M03_L00
  
ret
 
M03_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M03_L00
 
M03_L02
  
test      r8,r8
 
je        short M03_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M03_L06
 
jmp       short M03_L00
 
M03_L03
  
cmp       r8,40
 
ja        short M03_L07
 
M03_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M03_L11
 
M03_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M03_L00
 
M03_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M03_L00
 
M03_L07
  
cmp       r8,800
 
ja        short M03_L10
 
mov       r9,r8
 
shr       r9,6
 
M03_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M03_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M03_L04
 
jmp       short M03_L05
 
M03_L09
  
cmp       rcx,rdx
 
je        near ptr M03_L00
 
M03_L10
  
jmp       qword ptr [7FF9B2F15B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M03_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M03_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M04_L03
 
cmp       r8d,esi
 
jl        near ptr M04_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M04_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M04_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M04_L00
  
cmp       ebp,r10d
 
ja        near ptr M04_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M04_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FF9B30FCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M04_L07
 
M04_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M04_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FF9B33AF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F1D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L04
  
test      eax,eax
 
jne       short M04_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M04_L00
 
M04_L05
  
call      qword ptr [7FF9B305E9D0]
 
int       3
 
M04_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M04_L02
 
M04_L07
  
call      qword ptr [7FF9B305E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M05_L03
 
call      00007FF9B2E61E60
 
mov       rsi,rax
 
M05_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M05_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M05_L02
 
cmp       [rdx+8],r8d
 
jb        short M05_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M05_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M05_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33AF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F1D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L03
  
mov       rax,186632E0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ArrayBytesToStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
mov       edx,[rdx+8]
 
add       edx,edx
 
mov       rcx,rsi
 
call      qword ptr [7FF9B30DC150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       edi,edi
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
mov       rcx,[rbx+280]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
lea       rcx,[rcx+r8+10]
 
mov       r8,27521C00428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,2B5B3A27910
 
call      qword ptr [7FF9B3014810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L04
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
M00_L01
  
mov       [rsi+18],ebp
 
M00_L02
  
inc       edi
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,edi
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30CE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbp,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbp+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       r8d,r8d
 
mov       [rbp+8],r8
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L04
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L01
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30DCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M00_L02
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2D97738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FF9B2CF4000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FF9B38B41E0]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FF9B2CF4000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B338F3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2EFD470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FF9B2CF4000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B338F888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2EFD470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,0A996D9D3EBAC
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FF9B3014228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      00007FF9B2E41E60
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,0A996D9D3EBAC
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FF9B2FEFD20]
 
mov       rcx,0A996D9D3EBAC
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2FBF8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FF9B2FBF360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FF9B388D230]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,27521C00298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FF9B381DD28]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FF9B3817948]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FF9B385E2F8]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FF9B381DE30]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FF9B2EFC210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,27521C05B80
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FF9B3157550]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,0A996D9D3EBAC
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FF9B2FEFE40]
 
mov       rcx,0A996D9D3EBAC
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      00007FF9B2E41E60
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2CF4000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B338F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2EFD470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,2B5B3A10008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M04_L03
 
test      r8b,18
 
jne       short M04_L01
 
test      r8b,4
 
je        short M04_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M04_L00
  
ret
 
M04_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M04_L00
 
M04_L02
  
test      r8,r8
 
je        short M04_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M04_L06
 
jmp       short M04_L00
 
M04_L03
  
cmp       r8,40
 
ja        short M04_L07
 
M04_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M04_L11
 
M04_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M04_L00
 
M04_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M04_L00
 
M04_L07
  
cmp       r8,800
 
ja        short M04_L10
 
mov       r9,r8
 
shr       r9,6
 
M04_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M04_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M04_L04
 
jmp       short M04_L05
 
M04_L09
  
cmp       rcx,rdx
 
je        near ptr M04_L00
 
M04_L10
  
jmp       qword ptr [7FF9B2EF5B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M04_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M04_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M05_L03
 
cmp       r8d,esi
 
jl        near ptr M05_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M05_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M05_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M05_L00
  
cmp       ebp,r10d
 
ja        near ptr M05_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M05_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FF9B30DCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M05_L07
 
M05_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M05_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2CF4000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FF9B338F6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2EFD470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L04
  
test      eax,eax
 
jne       short M05_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M05_L00
 
M05_L05
  
call      qword ptr [7FF9B303E9D0]
 
int       3
 
M05_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M05_L02
 
M05_L07
  
call      qword ptr [7FF9B303E9E8]
 
int       3
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ArrayBytesToStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
mov       edx,[rdx+8]
 
add       edx,edx
 
mov       rcx,rsi
 
call      qword ptr [7FF9B30EC150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       edi,edi
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
mov       rcx,[rbx+280]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
lea       rcx,[rcx+r8+10]
 
mov       r8,1F987C00428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,23A15B07910
 
call      qword ptr [7FF9B3024810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L04
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
M00_L01
  
mov       [rsi+18],ebp
 
M00_L02
  
inc       edi
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,edi
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30DE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbp,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbp+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       r8d,r8d
 
mov       [rbp+8],r8
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L04
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L01
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M00_L02
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2DA7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FF9B2D04000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FF9B389FE70]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FF9B2D04000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B339F3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F0D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FF9B2D04000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B339F888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F0D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,13A0D0113584
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FF9B3024228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      00007FF9B2E51E60
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,13A0D0113584
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FF9B2FFFD20]
 
mov       rcx,13A0D0113584
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2FCF8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FF9B2FCF360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FF9B389D230]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,1F987C00298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FF9B382DD28]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FF9B3827948]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FF9B386E628]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FF9B382DE30]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FF9B2F0C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,1F983C03B88
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FF9B3167550]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,13A0D0113584
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FF9B2FFFE40]
 
mov       rcx,13A0D0113584
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      00007FF9B2E51E60
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2D04000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B339F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F0D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,23A15AF0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M04_L03
 
test      r8b,18
 
jne       short M04_L01
 
test      r8b,4
 
je        short M04_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M04_L00
  
ret
 
M04_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M04_L00
 
M04_L02
  
test      r8,r8
 
je        short M04_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M04_L06
 
jmp       short M04_L00
 
M04_L03
  
cmp       r8,40
 
ja        short M04_L07
 
M04_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M04_L11
 
M04_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M04_L00
 
M04_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M04_L00
 
M04_L07
  
cmp       r8,800
 
ja        short M04_L10
 
mov       r9,r8
 
shr       r9,6
 
M04_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M04_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M04_L04
 
jmp       short M04_L05
 
M04_L09
  
cmp       rcx,rdx
 
je        near ptr M04_L00
 
M04_L10
  
jmp       qword ptr [7FF9B2F05B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M04_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M04_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M05_L03
 
cmp       r8d,esi
 
jl        near ptr M05_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M05_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M05_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M05_L00
  
cmp       ebp,r10d
 
ja        near ptr M05_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M05_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FF9B30ECB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M05_L07
 
M05_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M05_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2D04000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FF9B339F6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F0D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L04
  
test      eax,eax
 
jne       short M05_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M05_L00
 
M05_L05
  
call      qword ptr [7FF9B304E9D0]
 
int       3
 
M05_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M05_L02
 
M05_L07
  
call      qword ptr [7FF9B304E9E8]
 
int       3
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ArrayBytesToStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
mov       edx,[rdx+8]
 
add       edx,edx
 
mov       rcx,rsi
 
call      qword ptr [7FF9B310C150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       edi,edi
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
mov       rcx,[rbx+280]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
lea       rcx,[rcx+r8+10]
 
mov       r8,18E14400428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,1CEA6497910
 
call      qword ptr [7FF9B3044810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L04
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
M00_L01
  
mov       [rsi+18],ebp
 
M00_L02
  
inc       edi
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,edi
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30FE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbp,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbp+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       r8d,r8d
 
mov       [rbp+8],r8
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L04
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L01
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B310CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M00_L02
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2DC7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FF9B2D24000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FF9B38BF2B8]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FF9B2D24000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33BF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F2D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FF9B2D24000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33BF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F2D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,820DB6B3AA58
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FF9B3044228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      00007FF9B2E71E60
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,820DB6B3AA58
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FF9B301FD20]
 
mov       rcx,820DB6B3AA58
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2FEF8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FF9B2FEF360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FF9B38BD230]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,18E14400298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FF9B384DD28]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FF9B3847948]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FF9B388E628]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FF9B384DE30]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FF9B2F2C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,18E14405B80
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FF9B3187550]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,820DB6B3AA58
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FF9B301FE40]
 
mov       rcx,820DB6B3AA58
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      00007FF9B2E71E60
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2D24000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33BF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F2D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,1CEA6480008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M04_L03
 
test      r8b,18
 
jne       short M04_L01
 
test      r8b,4
 
je        short M04_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M04_L00
  
ret
 
M04_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M04_L00
 
M04_L02
  
test      r8,r8
 
je        short M04_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M04_L06
 
jmp       short M04_L00
 
M04_L03
  
cmp       r8,40
 
ja        short M04_L07
 
M04_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M04_L11
 
M04_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M04_L00
 
M04_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M04_L00
 
M04_L07
  
cmp       r8,800
 
ja        short M04_L10
 
mov       r9,r8
 
shr       r9,6
 
M04_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M04_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M04_L04
 
jmp       short M04_L05
 
M04_L09
  
cmp       rcx,rdx
 
je        near ptr M04_L00
 
M04_L10
  
jmp       qword ptr [7FF9B2F25B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M04_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M04_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M05_L03
 
cmp       r8d,esi
 
jl        near ptr M05_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M05_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M05_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M05_L00
  
cmp       ebp,r10d
 
ja        near ptr M05_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M05_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FF9B310CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M05_L07
 
M05_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M05_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2D24000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FF9B33BF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F2D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L04
  
test      eax,eax
 
jne       short M05_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M05_L00
 
M05_L05
  
call      qword ptr [7FF9B306E9D0]
 
int       3
 
M05_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M05_L02
 
M05_L07
  
call      qword ptr [7FF9B306E9E8]
 
int       3
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ArrayBytesToStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
mov       edx,[rdx+8]
 
add       edx,edx
 
mov       rcx,rsi
 
call      qword ptr [7FF9B310C150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       edi,edi
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
mov       rcx,[rbx+280]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
lea       rcx,[rcx+r8+10]
 
mov       r8,16AD2C00428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,1AB5CA87910
 
call      qword ptr [7FF9B3044810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L04
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
M00_L01
  
mov       [rsi+18],ebp
 
M00_L02
  
inc       edi
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,edi
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30FE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbp,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbp+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       r8d,r8d
 
mov       [rbp+8],r8
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L04
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L01
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B310CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M00_L02
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2DC7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FF9B2D24000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FF9B38BF2B8]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FF9B2D24000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33BF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F2D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FF9B2D24000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33BF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F2D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,0A75B9714EEBA
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FF9B3044228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      00007FF9B2E71E60
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,0A75B9714EEBA
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FF9B301FD20]
 
mov       rcx,0A75B9714EEBA
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2FEF8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FF9B2FEF360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FF9B38BD230]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,16AD2C00298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FF9B384DD28]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FF9B3847948]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FF9B388E628]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FF9B384DE30]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FF9B2F2C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,16AD2C05B80
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FF9B3187550]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,0A75B9714EEBA
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FF9B301FE40]
 
mov       rcx,0A75B9714EEBA
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      00007FF9B2E71E60
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2D24000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33BF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F2D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,1AB5CA70008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M04_L03
 
test      r8b,18
 
jne       short M04_L01
 
test      r8b,4
 
je        short M04_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M04_L00
  
ret
 
M04_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M04_L00
 
M04_L02
  
test      r8,r8
 
je        short M04_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M04_L06
 
jmp       short M04_L00
 
M04_L03
  
cmp       r8,40
 
ja        short M04_L07
 
M04_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M04_L11
 
M04_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M04_L00
 
M04_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M04_L00
 
M04_L07
  
cmp       r8,800
 
ja        short M04_L10
 
mov       r9,r8
 
shr       r9,6
 
M04_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M04_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M04_L04
 
jmp       short M04_L05
 
M04_L09
  
cmp       rcx,rdx
 
je        near ptr M04_L00
 
M04_L10
  
jmp       qword ptr [7FF9B2F25B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M04_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M04_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M05_L03
 
cmp       r8d,esi
 
jl        near ptr M05_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M05_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M05_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M05_L00
  
cmp       ebp,r10d
 
ja        near ptr M05_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M05_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FF9B310CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M05_L07
 
M05_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M05_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2D24000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FF9B33BF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F2D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L04
  
test      eax,eax
 
jne       short M05_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M05_L00
 
M05_L05
  
call      qword ptr [7FF9B306E9D0]
 
int       3
 
M05_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M05_L02
 
M05_L07
  
call      qword ptr [7FF9B306E9E8]
 
int       3
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ReadOnlySpanBytesToStringComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
test      rdx,rdx
 
je        near ptr M00_L06
 
lea       rdi,[rdx+10]
 
mov       ebp,[rdx+8]
 
lea       edx,[rbp+rbp]
 
mov       rcx,rsi
 
call      qword ptr [7FF9B30EC150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       r14d,r14d
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
cmp       r14d,ebp
 
jae       near ptr M00_L07
 
mov       ecx,r14d
 
add       rcx,rdi
 
mov       r8,1D5BDC00428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,2164B9478F0
 
call      qword ptr [7FF9B3024810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        near ptr M00_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L04
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M00_L01
  
mov       [rsi+18],r15d
 
M00_L02
  
inc       r14d
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,r14d
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30DE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L04
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L01
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M00_L02
 
M00_L06
  
call      qword ptr [7FF9B3364CF0]
 
mov       ecx,0F
 
mov       rdx,7FF9B32DDAB0
 
call      CORINFO_HELP_STRCNS
 
mov       rbx,rax
 
mov       ecx,1C09
 
mov       rdx,7FF9B316BB50
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2E56B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       ecx,1
 
mov       rdx,7FF9B32DDAB0
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2E56B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       rcx,offset MT_System.ArgumentNullException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
call      qword ptr [7FF9B3364AE0]
 
mov       r8,rax
 
mov       rdx,rbx
 
mov       rcx,rsi
 
call      qword ptr [7FF9B3076670]
 
mov       rcx,rsi
 
call      CORINFO_HELP_THROW
 
int       3
 
M00_L07
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2DA7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FF9B2D04000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FF9B389EF88]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FF9B2D04000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B339F3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F0D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FF9B2D04000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B339F888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F0D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,1DAB6480303F
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FF9B3024228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      00007FF9B2E51E60
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,1DAB6480303F
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FF9B2FFFD20]
 
mov       rcx,1DAB6480303F
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2FCF8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FF9B2FCF360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FF9B389C528]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,1D5BDC00298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FF9B382C720]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FF9B3826508]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FF9B386D068]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FF9B382C828]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FF9B2F0C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,1D5BBC03B88
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FF9B3167550]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,1DAB6480303F
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FF9B2FFFE40]
 
mov       rcx,1DAB6480303F
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      00007FF9B2E51E60
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2D04000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B339F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F0D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,2164B930008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M04_L03
 
test      r8b,18
 
jne       short M04_L01
 
test      r8b,4
 
je        short M04_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M04_L00
  
ret
 
M04_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M04_L00
 
M04_L02
  
test      r8,r8
 
je        short M04_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M04_L06
 
jmp       short M04_L00
 
M04_L03
  
cmp       r8,40
 
ja        short M04_L07
 
M04_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M04_L11
 
M04_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M04_L00
 
M04_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M04_L00
 
M04_L07
  
cmp       r8,800
 
ja        short M04_L10
 
mov       r9,r8
 
shr       r9,6
 
M04_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M04_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M04_L04
 
jmp       short M04_L05
 
M04_L09
  
cmp       rcx,rdx
 
je        near ptr M04_L00
 
M04_L10
  
jmp       qword ptr [7FF9B2F05B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M04_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M04_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M05_L03
 
cmp       r8d,esi
 
jl        near ptr M05_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M05_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M05_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M05_L00
  
cmp       ebp,r10d
 
ja        near ptr M05_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M05_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FF9B30ECB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M05_L07
 
M05_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M05_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2D04000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FF9B339F6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F0D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L04
  
test      eax,eax
 
jne       short M05_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M05_L00
 
M05_L05
  
call      qword ptr [7FF9B304E9D0]
 
int       3
 
M05_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M05_L02
 
M05_L07
  
call      qword ptr [7FF9B304E9E8]
 
int       3
 
System.String.Concat(System.String, System.String)
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
test      rsi,rsi
 
je        near ptr M06_L02
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        short M06_L02
 
test      rbx,rbx
 
je        short M06_L00
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        short M06_L00
 
mov       r14d,edi
 
lea       ecx,[r14+rbp]
 
test      ecx,ecx
 
jl        short M06_L01
 
call      00007FF9B2E51E60
 
mov       r15,rax
 
cmp       [r15],r15b
 
lea       rcx,[r15+0C]
 
lea       rdx,[rsi+0C]
 
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
movsxd    r8,r14d
 
lea       rcx,[r15+r8*2+0C]
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r15
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M06_L00
  
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M06_L01
  
call      qword ptr [7FF9B304EF40]
 
int       3
 
M06_L02
  
test      rbx,rbx
 
je        short M06_L03
 
mov       ebp,[rbx+8]
 
xor       eax,eax
 
test      ebp,ebp
 
sete      al
 
test      eax,eax
 
je        short M06_L04
 
M06_L03
  
mov       rax,2164B930008
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M06_L04
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ReadOnlySpanBytesToStringComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
test      rdx,rdx
 
je        near ptr M00_L04
 
lea       rdi,[rdx+10]
 
mov       ebp,[rdx+8]
 
lea       edx,[rbp+rbp]
 
mov       rcx,rsi
 
call      qword ptr [7FF9B30FC150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       r14d,r14d
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
cmp       r14d,ebp
 
jae       near ptr M00_L07
 
mov       ecx,r14d
 
add       rcx,rdi
 
mov       r8,26680800428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,2A7128478F0
 
call      qword ptr [7FF9B3034810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        near ptr M00_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        near ptr M00_L05
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
M00_L01
  
mov       [rsi+18],r15d
 
M00_L02
  
inc       r14d
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,r14d
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30EE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       r15,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[r15+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [r15+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L04
  
call      qword ptr [7FF9B3374CF0]
 
mov       ecx,0F
 
mov       rdx,7FF9B32EDAB0
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
mov       ecx,1C09
 
mov       rdx,7FF9B317BAF8
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rsi
 
call      qword ptr [7FF9B2E66B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       ecx,1
 
mov       rdx,7FF9B32EDAB0
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2E66B08]; System.String.Concat(System.String, System.String)
 
mov       rdi,rax
 
mov       rcx,offset MT_System.ArgumentNullException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
call      qword ptr [7FF9B3374AE0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbp
 
call      qword ptr [7FF9B3086670]
 
mov       rcx,rbp
 
call      CORINFO_HELP_THROW
 
M00_L05
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M00_L01
 
M00_L06
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M00_L02
 
M00_L07
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2DB7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FF9B38AEF88]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33AF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F1D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33AF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F1D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,5CB9CE818C9F
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FF9B3034228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      00007FF9B2E61E60
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,5CB9CE818C9F
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FF9B300FD20]
 
mov       rcx,5CB9CE818C9F
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2FDF8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FF9B2FDF360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FF9B38AC528]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,26680800298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FF9B383C720]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FF9B3836508]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FF9B387D068]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FF9B383C828]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FF9B2F1C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,26680805B80
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FF9B31774F8]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,5CB9CE818C9F
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FF9B300FE40]
 
mov       rcx,5CB9CE818C9F
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      00007FF9B2E61E60
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33AF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F1D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,2A712830008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.String.Concat(System.String, System.String)
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
test      rsi,rsi
 
je        near ptr M04_L02
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        short M04_L02
 
test      rbx,rbx
 
je        short M04_L00
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        short M04_L00
 
mov       r14d,edi
 
lea       ecx,[r14+rbp]
 
test      ecx,ecx
 
jl        short M04_L01
 
call      00007FF9B2E61E60
 
mov       r15,rax
 
cmp       [r15],r15b
 
lea       rcx,[r15+0C]
 
lea       rdx,[rsi+0C]
 
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
movsxd    r8,r14d
 
lea       rcx,[r15+r8*2+0C]
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r15
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L00
  
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L01
  
call      qword ptr [7FF9B305EF40]
 
int       3
 
M04_L02
  
test      rbx,rbx
 
je        short M04_L03
 
mov       ebp,[rbx+8]
 
xor       eax,eax
 
test      ebp,ebp
 
sete      al
 
test      eax,eax
 
je        short M04_L04
 
M04_L03
  
mov       rax,2A712830008
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L04
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M05_L03
 
test      r8b,18
 
jne       short M05_L01
 
test      r8b,4
 
je        short M05_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M05_L00
  
ret
 
M05_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M05_L00
 
M05_L02
  
test      r8,r8
 
je        short M05_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M05_L06
 
jmp       short M05_L00
 
M05_L03
  
cmp       r8,40
 
ja        short M05_L07
 
M05_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M05_L11
 
M05_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M05_L00
 
M05_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M05_L00
 
M05_L07
  
cmp       r8,800
 
ja        short M05_L10
 
mov       r9,r8
 
shr       r9,6
 
M05_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M05_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M05_L04
 
jmp       short M05_L05
 
M05_L09
  
cmp       rcx,rdx
 
je        near ptr M05_L00
 
M05_L10
  
jmp       qword ptr [7FF9B2F15B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M05_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M05_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M06_L03
 
cmp       r8d,esi
 
jl        near ptr M06_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M06_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M06_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M06_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M06_L00
  
cmp       ebp,r10d
 
ja        near ptr M06_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M06_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FF9B30FCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M06_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M06_L07
 
M06_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M06_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FF9B33AF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F1D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M06_L04
  
test      eax,eax
 
jne       short M06_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M06_L00
 
M06_L05
  
call      qword ptr [7FF9B305E9D0]
 
int       3
 
M06_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M06_L02
 
M06_L07
  
call      qword ptr [7FF9B305E9E8]
 
int       3
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ReadOnlySpanBytesToStringComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
test      rdx,rdx
 
je        near ptr M00_L04
 
lea       rdi,[rdx+10]
 
mov       ebp,[rdx+8]
 
lea       edx,[rbp+rbp]
 
mov       rcx,rsi
 
call      qword ptr [7FF9B30FC150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       r14d,r14d
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
cmp       r14d,ebp
 
jae       near ptr M00_L07
 
mov       ecx,r14d
 
add       rcx,rdi
 
mov       r8,137DE800428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,178707C78F0
 
call      qword ptr [7FF9B3034810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        near ptr M00_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        near ptr M00_L05
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
M00_L01
  
mov       [rsi+18],r15d
 
M00_L02
  
inc       r14d
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,r14d
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30EE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       r15,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[r15+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [r15+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L04
  
call      qword ptr [7FF9B3374CF0]
 
mov       ecx,0F
 
mov       rdx,7FF9B32EDAB0
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
mov       ecx,1C09
 
mov       rdx,7FF9B317BB50
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rsi
 
call      qword ptr [7FF9B2E66B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       ecx,1
 
mov       rdx,7FF9B32EDAB0
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2E66B08]; System.String.Concat(System.String, System.String)
 
mov       rdi,rax
 
mov       rcx,offset MT_System.ArgumentNullException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
call      qword ptr [7FF9B3374AE0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbp
 
call      qword ptr [7FF9B3086670]
 
mov       rcx,rbp
 
call      CORINFO_HELP_THROW
 
M00_L05
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M00_L01
 
M00_L06
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M00_L02
 
M00_L07
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2DB7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FF9B38AEB50]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33AF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F1D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33AF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F1D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,332CC32F7E1
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FF9B3034228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      00007FF9B2E61E60
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,332CC32F7E1
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FF9B300FD20]
 
mov       rcx,332CC32F7E1
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2FDF8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FF9B2FDF360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FF9B38AC0F0]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,137DE800298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FF9B383C720]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FF9B3836508]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FF9B387CD38]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FF9B383C828]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FF9B2F1C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,137DE805B80
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FF9B3177550]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,332CC32F7E1
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FF9B300FE40]
 
mov       rcx,332CC32F7E1
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      00007FF9B2E61E60
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33AF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F1D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,178707B0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.String.Concat(System.String, System.String)
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
test      rsi,rsi
 
je        near ptr M04_L02
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        short M04_L02
 
test      rbx,rbx
 
je        short M04_L00
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        short M04_L00
 
mov       r14d,edi
 
lea       ecx,[r14+rbp]
 
test      ecx,ecx
 
jl        short M04_L01
 
call      00007FF9B2E61E60
 
mov       r15,rax
 
cmp       [r15],r15b
 
lea       rcx,[r15+0C]
 
lea       rdx,[rsi+0C]
 
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
movsxd    r8,r14d
 
lea       rcx,[r15+r8*2+0C]
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r15
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L00
  
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L01
  
call      qword ptr [7FF9B305EF40]
 
int       3
 
M04_L02
  
test      rbx,rbx
 
je        short M04_L03
 
mov       ebp,[rbx+8]
 
xor       eax,eax
 
test      ebp,ebp
 
sete      al
 
test      eax,eax
 
je        short M04_L04
 
M04_L03
  
mov       rax,178707B0008
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L04
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M05_L03
 
test      r8b,18
 
jne       short M05_L01
 
test      r8b,4
 
je        short M05_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M05_L00
  
ret
 
M05_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M05_L00
 
M05_L02
  
test      r8,r8
 
je        short M05_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M05_L06
 
jmp       short M05_L00
 
M05_L03
  
cmp       r8,40
 
ja        short M05_L07
 
M05_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M05_L11
 
M05_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M05_L00
 
M05_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M05_L00
 
M05_L07
  
cmp       r8,800
 
ja        short M05_L10
 
mov       r9,r8
 
shr       r9,6
 
M05_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M05_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M05_L04
 
jmp       short M05_L05
 
M05_L09
  
cmp       rcx,rdx
 
je        near ptr M05_L00
 
M05_L10
  
jmp       qword ptr [7FF9B2F15B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M05_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M05_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M06_L03
 
cmp       r8d,esi
 
jl        near ptr M06_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M06_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M06_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M06_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M06_L00
  
cmp       ebp,r10d
 
ja        near ptr M06_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M06_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FF9B30FCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M06_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M06_L07
 
M06_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M06_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FF9B33AF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F1D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M06_L04
  
test      eax,eax
 
jne       short M06_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M06_L00
 
M06_L05
  
call      qword ptr [7FF9B305E9D0]
 
int       3
 
M06_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M06_L02
 
M06_L07
  
call      qword ptr [7FF9B305E9E8]
 
int       3
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ReadOnlySpanBytesToStringComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
test      rdx,rdx
 
je        near ptr M00_L06
 
lea       rdi,[rdx+10]
 
mov       ebp,[rdx+8]
 
lea       edx,[rbp+rbp]
 
mov       rcx,rsi
 
call      qword ptr [7FF9B310C150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       r14d,r14d
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
cmp       r14d,ebp
 
jae       near ptr M00_L07
 
mov       ecx,r14d
 
add       rcx,rdi
 
mov       r8,1FBED400428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,23C7B2C78F0
 
call      qword ptr [7FF9B3044810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        near ptr M00_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L04
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M00_L01
  
mov       [rsi+18],r15d
 
M00_L02
  
inc       r14d
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,r14d
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30FE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L04
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L01
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B310CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M00_L02
 
M00_L06
  
call      qword ptr [7FF9B3384CF0]
 
mov       ecx,0F
 
mov       rdx,7FF9B32FDAB0
 
call      CORINFO_HELP_STRCNS
 
mov       rbx,rax
 
mov       ecx,1C09
 
mov       rdx,7FF9B318BB50
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2E76B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       ecx,1
 
mov       rdx,7FF9B32FDAB0
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2E76B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       rcx,offset MT_System.ArgumentNullException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
call      qword ptr [7FF9B3384AE0]
 
mov       r8,rax
 
mov       rdx,rbx
 
mov       rcx,rsi
 
call      qword ptr [7FF9B3096670]
 
mov       rcx,rsi
 
call      CORINFO_HELP_THROW
 
int       3
 
M00_L07
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2DC7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FF9B2D24000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FF9B38BEF58]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FF9B2D24000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33BF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F2D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FF9B2D24000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33BF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F2D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,0FEF1F91F099A
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FF9B3044228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      00007FF9B2E71E60
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,0FEF1F91F099A
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FF9B301FD20]
 
mov       rcx,0FEF1F91F099A
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2FEF8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FF9B2FEF360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FF9B38BC318]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,1FBED400298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FF9B384C720]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FF9B3846508]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FF9B388D068]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FF9B384C828]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FF9B2F2C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,1FBE9403B88
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FF9B3187550]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,0FEF1F91F099A
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FF9B301FE40]
 
mov       rcx,0FEF1F91F099A
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      00007FF9B2E71E60
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2D24000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33BF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F2D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,23C7B2B0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M04_L03
 
test      r8b,18
 
jne       short M04_L01
 
test      r8b,4
 
je        short M04_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M04_L00
  
ret
 
M04_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M04_L00
 
M04_L02
  
test      r8,r8
 
je        short M04_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M04_L06
 
jmp       short M04_L00
 
M04_L03
  
cmp       r8,40
 
ja        short M04_L07
 
M04_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M04_L11
 
M04_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M04_L00
 
M04_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M04_L00
 
M04_L07
  
cmp       r8,800
 
ja        short M04_L10
 
mov       r9,r8
 
shr       r9,6
 
M04_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M04_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M04_L04
 
jmp       short M04_L05
 
M04_L09
  
cmp       rcx,rdx
 
je        near ptr M04_L00
 
M04_L10
  
jmp       qword ptr [7FF9B2F25B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M04_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M04_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M05_L03
 
cmp       r8d,esi
 
jl        near ptr M05_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M05_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M05_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M05_L00
  
cmp       ebp,r10d
 
ja        near ptr M05_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M05_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FF9B310CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M05_L07
 
M05_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M05_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2D24000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FF9B33BF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F2D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L04
  
test      eax,eax
 
jne       short M05_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M05_L00
 
M05_L05
  
call      qword ptr [7FF9B306E9D0]
 
int       3
 
M05_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M05_L02
 
M05_L07
  
call      qword ptr [7FF9B306E9E8]
 
int       3
 
System.String.Concat(System.String, System.String)
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
test      rsi,rsi
 
je        near ptr M06_L02
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        short M06_L02
 
test      rbx,rbx
 
je        short M06_L00
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        short M06_L00
 
mov       r14d,edi
 
lea       ecx,[r14+rbp]
 
test      ecx,ecx
 
jl        short M06_L01
 
call      00007FF9B2E71E60
 
mov       r15,rax
 
cmp       [r15],r15b
 
lea       rcx,[r15+0C]
 
lea       rdx,[rsi+0C]
 
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
movsxd    r8,r14d
 
lea       rcx,[r15+r8*2+0C]
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r15
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M06_L00
  
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M06_L01
  
call      qword ptr [7FF9B306EF40]
 
int       3
 
M06_L02
  
test      rbx,rbx
 
je        short M06_L03
 
mov       ebp,[rbx+8]
 
xor       eax,eax
 
test      ebp,ebp
 
sete      al
 
test      eax,eax
 
je        short M06_L04
 
M06_L03
  
mov       rax,23C7B2B0008
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M06_L04
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ReadOnlySpanBytesToStringComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
test      rdx,rdx
 
je        near ptr M00_L06
 
lea       rdi,[rdx+10]
 
mov       ebp,[rdx+8]
 
lea       edx,[rbp+rbp]
 
mov       rcx,rsi
 
call      qword ptr [7FF9B30EC150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       r14d,r14d
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
cmp       r14d,ebp
 
jae       near ptr M00_L07
 
mov       ecx,r14d
 
add       rcx,rdi
 
mov       r8,26AB0000428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,2AB3E057910
 
call      qword ptr [7FF9B3024810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        near ptr M00_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L04
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M00_L01
  
mov       [rsi+18],r15d
 
M00_L02
  
inc       r14d
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,r14d
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30DE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L04
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L01
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M00_L02
 
M00_L06
  
call      qword ptr [7FF9B3364CF0]
 
mov       ecx,0F
 
mov       rdx,7FF9B32DDAB0
 
call      CORINFO_HELP_STRCNS
 
mov       rbx,rax
 
mov       ecx,1C09
 
mov       rdx,7FF9B316BB50
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2E56B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       ecx,1
 
mov       rdx,7FF9B32DDAB0
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2E56B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       rcx,offset MT_System.ArgumentNullException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
call      qword ptr [7FF9B3364AE0]
 
mov       r8,rax
 
mov       rdx,rbx
 
mov       rcx,rsi
 
call      qword ptr [7FF9B3076670]
 
mov       rcx,rsi
 
call      CORINFO_HELP_THROW
 
int       3
 
M00_L07
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2DA7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FF9B2D04000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FF9B38C4720]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FF9B2D04000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B339F3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F0D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FF9B2D04000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B339F888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F0D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,93D0CBAF794F
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FF9B3024228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      00007FF9B2E51E60
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,93D0CBAF794F
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FF9B2FFFD20]
 
mov       rcx,93D0CBAF794F
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2FCF8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FF9B2FCF360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FF9B389D788]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,26AB0000298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FF9B382DD28]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FF9B3827948]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FF9B386E2F8]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FF9B382DE30]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FF9B2F0C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,26AAC003B88
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FF9B3167550]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,93D0CBAF794F
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FF9B2FFFE40]
 
mov       rcx,93D0CBAF794F
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      00007FF9B2E51E60
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2D04000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B339F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F0D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,2AB3E040008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M04_L03
 
test      r8b,18
 
jne       short M04_L01
 
test      r8b,4
 
je        short M04_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M04_L00
  
ret
 
M04_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M04_L00
 
M04_L02
  
test      r8,r8
 
je        short M04_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M04_L06
 
jmp       short M04_L00
 
M04_L03
  
cmp       r8,40
 
ja        short M04_L07
 
M04_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M04_L11
 
M04_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M04_L00
 
M04_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M04_L00
 
M04_L07
  
cmp       r8,800
 
ja        short M04_L10
 
mov       r9,r8
 
shr       r9,6
 
M04_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M04_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M04_L04
 
jmp       short M04_L05
 
M04_L09
  
cmp       rcx,rdx
 
je        near ptr M04_L00
 
M04_L10
  
jmp       qword ptr [7FF9B2F05B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M04_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M04_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M05_L03
 
cmp       r8d,esi
 
jl        near ptr M05_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M05_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M05_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M05_L00
  
cmp       ebp,r10d
 
ja        near ptr M05_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M05_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FF9B30ECB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M05_L07
 
M05_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M05_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2D04000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FF9B339F6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F0D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L04
  
test      eax,eax
 
jne       short M05_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M05_L00
 
M05_L05
  
call      qword ptr [7FF9B304E9D0]
 
int       3
 
M05_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M05_L02
 
M05_L07
  
call      qword ptr [7FF9B304E9E8]
 
int       3
 
System.String.Concat(System.String, System.String)
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
test      rsi,rsi
 
je        near ptr M06_L02
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        short M06_L02
 
test      rbx,rbx
 
je        short M06_L00
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        short M06_L00
 
mov       r14d,edi
 
lea       ecx,[r14+rbp]
 
test      ecx,ecx
 
jl        short M06_L01
 
call      00007FF9B2E51E60
 
mov       r15,rax
 
cmp       [r15],r15b
 
lea       rcx,[r15+0C]
 
lea       rdx,[rsi+0C]
 
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
movsxd    r8,r14d
 
lea       rcx,[r15+r8*2+0C]
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r15
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M06_L00
  
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M06_L01
  
call      qword ptr [7FF9B304EF40]
 
int       3
 
M06_L02
  
test      rbx,rbx
 
je        short M06_L03
 
mov       ebp,[rbx+8]
 
xor       eax,eax
 
test      ebp,ebp
 
sete      al
 
test      eax,eax
 
je        short M06_L04
 
M06_L03
  
mov       rax,2AB3E040008
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M06_L04
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ReadOnlySpanBytesToStringComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
test      rdx,rdx
 
je        near ptr M00_L04
 
lea       rdi,[rdx+10]
 
mov       ebp,[rdx+8]
 
lea       edx,[rbp+rbp]
 
mov       rcx,rsi
 
call      qword ptr [7FF9B30FC150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       r14d,r14d
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
cmp       r14d,ebp
 
jae       near ptr M00_L07
 
mov       ecx,r14d
 
add       rcx,rdi
 
mov       r8,18049400428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,1C0DB537910
 
call      qword ptr [7FF9B3034810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        near ptr M00_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        near ptr M00_L05
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
M00_L01
  
mov       [rsi+18],r15d
 
M00_L02
  
inc       r14d
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,r14d
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30EE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       r15,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[r15+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [r15+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L04
  
call      qword ptr [7FF9B3374CF0]
 
mov       ecx,0F
 
mov       rdx,7FF9B32EDAB0
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
mov       ecx,1C09
 
mov       rdx,7FF9B317BB50
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rsi
 
call      qword ptr [7FF9B2E66B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       ecx,1
 
mov       rdx,7FF9B32EDAB0
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2E66B08]; System.String.Concat(System.String, System.String)
 
mov       rdi,rax
 
mov       rcx,offset MT_System.ArgumentNullException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
call      qword ptr [7FF9B3374AE0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbp
 
call      qword ptr [7FF9B3086670]
 
mov       rcx,rbp
 
call      CORINFO_HELP_THROW
 
M00_L05
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M00_L01
 
M00_L06
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M00_L02
 
M00_L07
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2DB7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FF9B38D4708]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33AF3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F1D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33AF888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F1D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,0D8575E84E85A
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FF9B3034228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      00007FF9B2E61E60
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,0D8575E84E85A
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FF9B300FD20]
 
mov       rcx,0D8575E84E85A
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2FDF8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FF9B2FDF360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FF9B38AD788]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,18049400298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FF9B383DD28]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FF9B3837948]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FF9B387E2F8]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FF9B383DE30]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FF9B2F1C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,18049405B80
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FF9B3177550]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,0D8575E84E85A
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FF9B300FE40]
 
mov       rcx,0D8575E84E85A
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      00007FF9B2E61E60
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33AF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F1D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,1C0DB520008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.String.Concat(System.String, System.String)
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
test      rsi,rsi
 
je        near ptr M04_L02
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        short M04_L02
 
test      rbx,rbx
 
je        short M04_L00
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        short M04_L00
 
mov       r14d,edi
 
lea       ecx,[r14+rbp]
 
test      ecx,ecx
 
jl        short M04_L01
 
call      00007FF9B2E61E60
 
mov       r15,rax
 
cmp       [r15],r15b
 
lea       rcx,[r15+0C]
 
lea       rdx,[rsi+0C]
 
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
movsxd    r8,r14d
 
lea       rcx,[r15+r8*2+0C]
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r15
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L00
  
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L01
  
call      qword ptr [7FF9B305EF40]
 
int       3
 
M04_L02
  
test      rbx,rbx
 
je        short M04_L03
 
mov       ebp,[rbx+8]
 
xor       eax,eax
 
test      ebp,ebp
 
sete      al
 
test      eax,eax
 
je        short M04_L04
 
M04_L03
  
mov       rax,1C0DB520008
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L04
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M05_L03
 
test      r8b,18
 
jne       short M05_L01
 
test      r8b,4
 
je        short M05_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M05_L00
  
ret
 
M05_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M05_L00
 
M05_L02
  
test      r8,r8
 
je        short M05_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M05_L06
 
jmp       short M05_L00
 
M05_L03
  
cmp       r8,40
 
ja        short M05_L07
 
M05_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M05_L11
 
M05_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M05_L00
 
M05_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M05_L00
 
M05_L07
  
cmp       r8,800
 
ja        short M05_L10
 
mov       r9,r8
 
shr       r9,6
 
M05_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M05_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M05_L04
 
jmp       short M05_L05
 
M05_L09
  
cmp       rcx,rdx
 
je        near ptr M05_L00
 
M05_L10
  
jmp       qword ptr [7FF9B2F15B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M05_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M05_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M06_L03
 
cmp       r8d,esi
 
jl        near ptr M06_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M06_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M06_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M06_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M06_L00
  
cmp       ebp,r10d
 
ja        near ptr M06_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M06_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FF9B30FCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M06_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M06_L07
 
M06_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M06_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FF9B33AF6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F1D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M06_L04
  
test      eax,eax
 
jne       short M06_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M06_L00
 
M06_L05
  
call      qword ptr [7FF9B305E9D0]
 
int       3
 
M06_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M06_L02
 
M06_L07
  
call      qword ptr [7FF9B305E9E8]
 
int       3
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ReadOnlySpanBytesToStringComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
test      rdx,rdx
 
je        near ptr M00_L04
 
lea       rdi,[rdx+10]
 
mov       ebp,[rdx+8]
 
lea       edx,[rbp+rbp]
 
mov       rcx,rsi
 
call      qword ptr [7FF9B30EC150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       r14d,r14d
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
cmp       r14d,ebp
 
jae       near ptr M00_L07
 
mov       ecx,r14d
 
add       rcx,rdi
 
mov       r8,19DA8000428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,1DE3A067910
 
call      qword ptr [7FF9B3024810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        near ptr M00_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        near ptr M00_L05
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
M00_L01
  
mov       [rsi+18],r15d
 
M00_L02
  
inc       r14d
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,r14d
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30DE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       r15,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[r15+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [r15+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L04
  
call      qword ptr [7FF9B3364CF0]
 
mov       ecx,0F
 
mov       rdx,7FF9B32DDAB0
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
mov       ecx,1C09
 
mov       rdx,7FF9B316BB50
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rsi
 
call      qword ptr [7FF9B2E56B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       ecx,1
 
mov       rdx,7FF9B32DDAB0
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2E56B08]; System.String.Concat(System.String, System.String)
 
mov       rdi,rax
 
mov       rcx,offset MT_System.ArgumentNullException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
call      qword ptr [7FF9B3364AE0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbp
 
call      qword ptr [7FF9B3076670]
 
mov       rcx,rbp
 
call      CORINFO_HELP_THROW
 
M00_L05
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M00_L01
 
M00_L06
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M00_L02
 
M00_L07
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2DA7738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FF9B2D04000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FF9B38C4708]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FF9B2D04000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B339F3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F0D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FF9B2D04000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B339F888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F0D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,6D70A6353B78
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FF9B3024228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      00007FF9B2E51E60
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,6D70A6353B78
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FF9B2FFFD20]
 
mov       rcx,6D70A6353B78
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2FCF8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FF9B2FCF360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FF9B389D788]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,19DA8000298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FF9B382DD28]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FF9B3827948]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FF9B386E2F8]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FF9B382DE30]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FF9B2F0C210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,19DA8005B80
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FF9B3167550]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,6D70A6353B78
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FF9B2FFFE40]
 
mov       rcx,6D70A6353B78
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      00007FF9B2E51E60
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2D04000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B339F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F0D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,1DE3A050008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.String.Concat(System.String, System.String)
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
test      rsi,rsi
 
je        near ptr M04_L02
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        short M04_L02
 
test      rbx,rbx
 
je        short M04_L00
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        short M04_L00
 
mov       r14d,edi
 
lea       ecx,[r14+rbp]
 
test      ecx,ecx
 
jl        short M04_L01
 
call      00007FF9B2E51E60
 
mov       r15,rax
 
cmp       [r15],r15b
 
lea       rcx,[r15+0C]
 
lea       rdx,[rsi+0C]
 
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
movsxd    r8,r14d
 
lea       rcx,[r15+r8*2+0C]
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r15
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L00
  
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L01
  
call      qword ptr [7FF9B304EF40]
 
int       3
 
M04_L02
  
test      rbx,rbx
 
je        short M04_L03
 
mov       ebp,[rbx+8]
 
xor       eax,eax
 
test      ebp,ebp
 
sete      al
 
test      eax,eax
 
je        short M04_L04
 
M04_L03
  
mov       rax,1DE3A050008
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M04_L04
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M05_L03
 
test      r8b,18
 
jne       short M05_L01
 
test      r8b,4
 
je        short M05_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M05_L00
  
ret
 
M05_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M05_L00
 
M05_L02
  
test      r8,r8
 
je        short M05_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M05_L06
 
jmp       short M05_L00
 
M05_L03
  
cmp       r8,40
 
ja        short M05_L07
 
M05_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M05_L11
 
M05_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M05_L00
 
M05_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M05_L00
 
M05_L07
  
cmp       r8,800
 
ja        short M05_L10
 
mov       r9,r8
 
shr       r9,6
 
M05_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M05_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M05_L04
 
jmp       short M05_L05
 
M05_L09
  
cmp       rcx,rdx
 
je        near ptr M05_L00
 
M05_L10
  
jmp       qword ptr [7FF9B2F05B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M05_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M05_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M06_L03
 
cmp       r8d,esi
 
jl        near ptr M06_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M06_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M06_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M06_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M06_L00
  
cmp       ebp,r10d
 
ja        near ptr M06_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M06_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FF9B30ECB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M06_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M06_L07
 
M06_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M06_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2D04000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FF9B339F6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F0D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M06_L04
  
test      eax,eax
 
jne       short M06_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M06_L00
 
M06_L05
  
call      qword ptr [7FF9B304E9D0]
 
int       3
 
M06_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M06_L02
 
M06_L07
  
call      qword ptr [7FF9B304E9E8]
 
int       3
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ReadOnlySpanBytesToStringComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdx,[rbx+280]
 
test      rdx,rdx
 
je        near ptr M00_L06
 
lea       rdi,[rdx+10]
 
mov       ebp,[rdx+8]
 
lea       edx,[rbp+rbp]
 
mov       rcx,rsi
 
call      qword ptr [7FF9B30DC150]; System.Text.StringBuilder.set_Capacity(Int32)
 
xor       r14d,r14d
 
mov       rcx,[rbx+280]
 
cmp       dword ptr [rcx+8],0
 
je        near ptr M00_L03
 
M00_L00
  
cmp       r14d,ebp
 
jae       near ptr M00_L07
 
mov       ecx,r14d
 
add       rcx,rdi
 
mov       r8,24D4A800428
 
mov       r8,[r8]
 
movzx     ecx,byte ptr [rcx]
 
mov       rdx,28DD87F7910
 
call      qword ptr [7FF9B3014810]; System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
 
test      rax,rax
 
je        short M00_L02
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L02
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        near ptr M00_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M00_L04
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M00_L01
  
mov       [rsi+18],r15d
 
M00_L02
  
inc       r14d
 
mov       rcx,[rbx+280]
 
mov       ecx,[rcx+8]
 
movsxd    rax,r14d
 
cmp       rcx,rax
 
jg        near ptr M00_L00
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30CE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L04
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L01
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30DCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M00_L02
 
M00_L06
  
call      qword ptr [7FF9B3354CF0]
 
mov       ecx,0F
 
mov       rdx,7FF9B32CD0D8
 
call      CORINFO_HELP_STRCNS
 
mov       rbx,rax
 
mov       ecx,1C09
 
mov       rdx,7FF9B315B900
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2E46B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       ecx,1
 
mov       rdx,7FF9B32CD0D8
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2E46B08]; System.String.Concat(System.String, System.String)
 
mov       rbx,rax
 
mov       rcx,offset MT_System.ArgumentNullException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
call      qword ptr [7FF9B3354AE0]
 
mov       r8,rax
 
mov       rdx,rbx
 
mov       rcx,rsi
 
call      qword ptr [7FF9B3066670]
 
mov       rcx,rsi
 
call      CORINFO_HELP_THROW
 
int       3
 
M00_L07
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.set_Capacity(Int32)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
test      esi,esi
 
jl        short M01_L02
 
cmp       esi,[rbx+20]
 
jg        near ptr M01_L03
 
mov       edx,[rbx+1C]
 
mov       ecx,edx
 
add       ecx,[rbx+18]
 
cmp       ecx,esi
 
jg        near ptr M01_L04
 
mov       rcx,[rbx+8]
 
mov       r8d,edx
 
add       r8d,[rcx+8]
 
cmp       r8d,esi
 
je        short M01_L01
 
sub       esi,edx
 
mov       edx,esi
 
cmp       edx,400
 
jl        near ptr M01_L05
 
mov       rcx,offset MT_System.Char[]
 
mov       r8d,10
 
call      System.GC.AllocateNewArray(IntPtr, Int32, GC_ALLOC_FLAGS)
 
mov       rsi,rax
 
M01_L00
  
mov       rcx,[rbx+8]
 
mov       r8d,[rbx+18]
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2D97738]; System.Array.Copy(System.Array, System.Array, Int32)
 
lea       rcx,[rbx+8]
 
mov       rdx,rsi
 
call      CORINFO_HELP_ASSIGN_REF
 
M01_L01
  
nop
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L02
  
mov       ecx,2E5
 
mov       rdx,7FF9B2CF4000
 
call      CORINFO_HELP_STRCNS
 
mov       rdx,rax
 
mov       ecx,esi
 
call      qword ptr [7FF9B388FB40]
 
int       3
 
M01_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FF9B2CF4000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B338F3F0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2EFD470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L04
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,2E5
 
mov       rdx,7FF9B2CF4000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B338F888]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2EFD470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M01_L05
  
movsxd    rdx,edx
 
mov       rcx,offset MT_System.Char[]
 
call      CORINFO_HELP_NEWARR_1_VC
 
mov       rsi,rax
 
jmp       near ptr M01_L00
 
System.Number.g__FormatUInt32Slow|43_0(UInt32, System.String, System.IFormatProvider)
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,0E0
 
lea       rbp,[rsp+30]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
vmovdqa   xmmword ptr [rbp+20],xmm4
 
mov       rax,0FFFFFFFFFFFFFFA0
 
M02_L00
  
vmovdqa   xmmword ptr [rbp+rax+90],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0A0],xmm4
 
vmovdqa   xmmword ptr [rbp+rax+0B0],xmm4
 
add       rax,30
 
jne       short M02_L00
 
mov       rax,0C1FFE8214638
 
mov       [rbp+0A8],rax
 
mov       rbx,r8
 
mov       esi,ecx
 
test      rdx,rdx
 
jne       short M02_L01
 
xor       edi,edi
 
xor       r14d,r14d
 
jmp       short M02_L02
 
M02_L01
  
lea       rdi,[rdx+0C]
 
mov       r14d,[rdx+8]
 
M02_L02
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       rcx,[rbp+28]
 
lea       rdx,[rbp+90]
 
call      qword ptr [7FF9B3014228]; System.Number.ParseFormatSpecifier(System.ReadOnlySpan`1, Int32 ByRef)
 
mov       r15d,eax
 
mov       r13d,r15d
 
and       r13d,0FFDF
 
cmp       r13d,47
 
je        short M02_L03
 
cmp       r13d,44
 
jne       short M02_L04
 
jmp       near ptr M02_L27
 
M02_L03
  
cmp       dword ptr [rbp+90],0
 
jle       near ptr M02_L27
 
M02_L04
  
cmp       r13d,58
 
jne       near ptr M02_L12
 
mov       r13d,[rbp+90]
 
mov       ecx,1
 
test      r13d,r13d
 
cmovle    r13d,ecx
 
mov       ecx,esi
 
or        rcx,1
 
lzcnt     rcx,rcx
 
xor       ecx,3F
 
sar       ecx,2
 
inc       ecx
 
cmp       r13d,ecx
 
mov       ebx,ecx
 
cmovge    ebx,r13d
 
mov       ecx,ebx
 
call      00007FF9B2E41E60
 
test      rax,rax
 
je        near ptr M02_L11
 
lea       rcx,[rax+0C]
 
mov       [rbp+38],rcx
 
mov       rcx,[rbp+38]
 
M02_L05
  
movsxd    rdx,ebx
 
lea       rcx,[rcx+rdx*2]
 
mov       edx,r13d
 
dec       edx
 
js        short M02_L08
 
M02_L06
  
mov       r8d,esi
 
and       r8d,0F
 
add       rcx,0FFFFFFFFFFFFFFFE
 
cmp       r8d,0A
 
jge       short M02_L10
 
mov       r10d,30
 
M02_L07
  
add       r8d,r10d
 
mov       [rcx],r8w
 
shr       esi,4
 
dec       edx
 
jns       short M02_L06
 
M02_L08
  
test      esi,esi
 
jne       short M02_L06
 
xor       ecx,ecx
 
mov       [rbp+38],rcx
 
mov       rcx,0C1FFE8214638
 
cmp       [rbp+0A8],rcx
 
je        short M02_L09
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L09
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
lea       r10d,[r15-21]
 
movzx     r10d,r10w
 
jmp       short M02_L07
 
M02_L11
  
xor       ecx,ecx
 
jmp       short M02_L05
 
M02_L12
  
cmp       r13d,42
 
jne       short M02_L14
 
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FF9B2FEFD20]
 
mov       rcx,0C1FFE8214638
 
cmp       [rbp+0A8],rcx
 
je        short M02_L13
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L13
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L14
  
test      rbx,rbx
 
je        short M02_L15
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2FBF8B8]; System.Globalization.NumberFormatInfo.g__GetProviderNonNull|58_0(System.IFormatProvider)
 
mov       rbx,rax
 
jmp       short M02_L16
 
M02_L15
  
call      qword ptr [7FF9B2FBF360]; System.Globalization.NumberFormatInfo.get_CurrentInfo()
 
mov       rbx,rax
 
M02_L16
  
lea       r8,[rbp+98]
 
mov       [rbp+18],r8
 
mov       dword ptr [rbp+20],0B
 
lea       r8,[rbp+18]
 
lea       rcx,[rbp+70]
 
mov       edx,1
 
call      qword ptr [7FF9B388D788]
 
mov       dword ptr [rbp+70],0A
 
mov       byte ptr [rbp+78],0
 
mov       rdx,[rbp+80]
 
lea       rcx,[rdx+0A]
 
mov       eax,esi
 
xor       r8d,r8d
 
cmp       eax,64
 
jb        short M02_L18
 
M02_L17
  
add       rcx,0FFFFFFFFFFFFFFFE
 
add       r8d,0FFFFFFFE
 
mov       r10d,eax
 
imul      r10,51EB851F
 
shr       r10,25
 
imul      r9d,r10d,64
 
sub       eax,r9d
 
mov       r9,24D4A800298
 
mov       r9,[r9]
 
add       eax,eax
 
mov       ax,[r9+rax+10]
 
mov       [rcx],ax
 
cmp       r10d,64
 
mov       eax,r10d
 
jae       short M02_L17
 
M02_L18
  
test      eax,eax
 
je        short M02_L20
 
M02_L19
  
dec       r8d
 
mov       r10d,0CCCCCCCD
 
mov       r9d,eax
 
imul      r10,r9
 
shr       r10,23
 
lea       r9d,[r10+r10*4]
 
add       r9d,r9d
 
mov       r11d,eax
 
sub       r11d,r9d
 
mov       eax,r10d
 
dec       rcx
 
add       r11d,30
 
mov       [rcx],r11b
 
test      eax,eax
 
jne       short M02_L19
 
M02_L20
  
test      r8d,r8d
 
jg        short M02_L19
 
add       rdx,0A
 
sub       rdx,rcx
 
mov       [rbp+70],edx
 
mov       [rbp+74],edx
 
mov       rax,[rbp+80]
 
jmp       short M02_L22
 
M02_L21
  
lea       r8,[rax+1]
 
lea       r10,[rcx+1]
 
movzx     ecx,byte ptr [rcx]
 
mov       [rax],cl
 
mov       rax,r8
 
mov       rcx,r10
 
M02_L22
  
dec       edx
 
jns       short M02_L21
 
mov       byte ptr [rax],0
 
test      [rsp],esp
 
sub       rsp,40
 
lea       rdx,[rsp+30]
 
mov       [rbp+8],rdx
 
mov       dword ptr [rbp+10],20
 
lea       rdx,[rbp+8]
 
lea       rcx,[rbp+50]
 
call      qword ptr [7FF9B381DD28]
 
test      r15d,r15d
 
je        short M02_L23
 
mov       [rsp+20],rbx
 
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+70]
 
mov       r8d,r15d
 
mov       r9d,[rbp+90]
 
call      qword ptr [7FF9B3817948]; System.Number.NumberToString[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, Char, Int32, System.Globalization.NumberFormatInfo)
 
jmp       short M02_L24
 
M02_L23
  
mov       [rbp+28],rdi
 
mov       [rbp+30],r14d
 
lea       r8,[rbp+28]
 
lea       rdx,[rbp+70]
 
lea       rcx,[rbp+50]
 
mov       r9,rbx
 
call      qword ptr [7FF9B385E2F8]; System.Number.NumberToStringFormat[[System.Char, System.Private.CoreLib]](System.Collections.Generic.ValueListBuilder`1 ByRef, NumberBuffer ByRef, System.ReadOnlySpan`1, System.Globalization.NumberFormatInfo)
 
M02_L24
  
lea       rcx,[rbp+50]
 
lea       rdx,[rbp+40]
 
call      qword ptr [7FF9B381DE30]
 
lea       rcx,[rbp+40]
 
call      qword ptr [7FF9B2EFC210]; System.ReadOnlySpan`1[[System.Char, System.Private.CoreLib]].ToString()
 
mov       rbx,rax
 
mov       rdx,[rbp+50]
 
test      rdx,rdx
 
je        short M02_L25
 
xor       ecx,ecx
 
mov       [rbp+50],rcx
 
mov       rcx,24D46803B50
 
mov       rcx,[rcx]
 
xor       r8d,r8d
 
call      qword ptr [7FF9B3121B68]; Precode of System.Buffers.SharedArrayPool`1[[System.Char, System.Private.CoreLib]].Return(Char[], Boolean)
 
M02_L25
  
mov       rax,rbx
 
mov       rcx,0C1FFE8214638
 
cmp       [rbp+0A8],rcx
 
je        short M02_L26
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L26
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L27
  
mov       ecx,esi
 
mov       edx,[rbp+90]
 
call      qword ptr [7FF9B2FEFE40]
 
mov       rcx,0C1FFE8214638
 
cmp       [rbp+0A8],rcx
 
je        short M02_L28
 
call      CORINFO_HELP_FAIL_FAST
 
M02_L28
  
nop
 
lea       rsp,[rbp+0B0]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      00007FF9B2E41E60
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2CF4000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B338F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2EFD470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,28DD87E0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M04_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M04_L03
 
test      r8b,18
 
jne       short M04_L01
 
test      r8b,4
 
je        short M04_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M04_L00
  
ret
 
M04_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M04_L00
 
M04_L02
  
test      r8,r8
 
je        short M04_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M04_L06
 
jmp       short M04_L00
 
M04_L03
  
cmp       r8,40
 
ja        short M04_L07
 
M04_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M04_L11
 
M04_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M04_L00
 
M04_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M04_L00
 
M04_L07
  
cmp       r8,800
 
ja        short M04_L10
 
mov       r9,r8
 
shr       r9,6
 
M04_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M04_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M04_L04
 
jmp       short M04_L05
 
M04_L09
  
cmp       rcx,rdx
 
je        near ptr M04_L00
 
M04_L10
  
jmp       qword ptr [7FF9B2EF5B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M04_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M04_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,rdx
 
mov       esi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,esi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M05_L03
 
cmp       r8d,esi
 
jl        near ptr M05_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M05_L01
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M05_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M05_L00
  
cmp       ebp,r10d
 
ja        near ptr M05_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M05_L01
  
sub       esi,ebp
 
mov       rcx,rbx
 
mov       edx,esi
 
call      qword ptr [7FF9B30DCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rdi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M05_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       esi,r14d
 
ja        near ptr M05_L07
 
M05_L02
  
mov       r8d,esi
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],esi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M05_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2CF4000
 
call      CORINFO_HELP_STRCNS
 
mov       rdi,rax
 
call      qword ptr [7FF9B338F6C0]
 
mov       r8,rax
 
mov       rdx,rdi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2EFD470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L04
  
test      eax,eax
 
jne       short M05_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M05_L00
 
M05_L05
  
call      qword ptr [7FF9B303E9D0]
 
int       3
 
M05_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       esi,r14d
 
jbe       short M05_L02
 
M05_L07
  
call      qword ptr [7FF9B303E9E8]
 
int       3
 
System.String.Concat(System.String, System.String)
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
test      rsi,rsi
 
je        near ptr M06_L02
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        short M06_L02
 
test      rbx,rbx
 
je        short M06_L00
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        short M06_L00
 
mov       r14d,edi
 
lea       ecx,[r14+rbp]
 
test      ecx,ecx
 
jl        short M06_L01
 
call      00007FF9B2E41E60
 
mov       r15,rax
 
cmp       [r15],r15b
 
lea       rcx,[r15+0C]
 
lea       rdx,[rsi+0C]
 
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
movsxd    r8,r14d
 
lea       rcx,[r15+r8*2+0C]
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r15
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M06_L00
  
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M06_L01
  
call      qword ptr [7FF9B303EF40]
 
int       3
 
M06_L02
  
test      rbx,rbx
 
je        short M06_L03
 
mov       ebp,[rbx+8]
 
xor       eax,eax
 
test      ebp,ebp
 
sete      al
 
test      eax,eax
 
je        short M06_L04
 
M06_L03
  
mov       rax,28DD87E0008
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M06_L04
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpaceComparison()
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,40
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,148FC400428
 
mov       r8,[r8]
 
mov       [rsp+38],rcx
 
lea       rcx,[rsp+38]
 
mov       [rsp+20],rcx
 
mov       dword ptr [rsp+28],1
 
mov       rcx,r8
 
lea       r8,[rsp+20]
 
mov       rdx,1898E1978F0
 
call      qword ptr [7FF9B2E56C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r15d,[rax+8]
 
test      r15d,r15d
 
je        short M00_L04
 
mov       r8,[rsi+8]
 
mov       r13d,[rsi+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M00_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jle       short M00_L02
 
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
add       r15d,r13d
 
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
mov       r8d,r15d
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30DE778]; System.Text.StringBuilder.ToString()
 
mov       rsi,rax
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        near ptr M00_L24
 
movzx     ecx,word ptr [rsi+0C]
 
cmp       ecx,100
 
jae       short M00_L06
 
mov       rax,7FF9D5502E50
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       short M00_L07
 
M00_L06
  
call      qword ptr [7FF9B38CF1F8]
 
test      eax,eax
 
jne       short M00_L09
 
M00_L07
  
lea       ecx,[rdi-1]
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L08
 
mov       rax,7FF9D5502E50
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       near ptr M00_L24
 
M00_L08
  
call      qword ptr [7FF9B38CF1F8]
 
test      eax,eax
 
je        near ptr M00_L24
 
M00_L09
  
xor       ebp,ebp
 
test      edi,edi
 
jle       short M00_L13
 
M00_L10
  
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L11
 
mov       rax,7FF9D5502E50
 
test      byte ptr [rcx+rax],80
 
je        short M00_L13
 
jmp       short M00_L12
 
M00_L11
  
call      qword ptr [7FF9B38CF1F8]
 
test      eax,eax
 
je        short M00_L13
 
M00_L12
  
inc       ebp
 
cmp       edi,ebp
 
jg        short M00_L10
 
M00_L13
  
lea       r14d,[rdi-1]
 
cmp       r14d,ebp
 
jl        near ptr M00_L20
 
mov       ecx,r14d
 
or        ecx,ebp
 
jl        short M00_L17
 
cmp       edi,r14d
 
jle       short M00_L17
 
M00_L14
  
mov       ecx,r14d
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L15
 
mov       ecx,ecx
 
mov       rax,7FF9D5502E50
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L16
 
M00_L15
  
call      qword ptr [7FF9B38CF1F8]
 
test      eax,eax
 
je        short M00_L20
 
M00_L16
  
dec       r14d
 
cmp       r14d,ebp
 
jge       short M00_L14
 
jmp       short M00_L20
 
M00_L17
  
cmp       r14d,edi
 
jae       near ptr M00_L25
 
mov       ecx,r14d
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L18
 
mov       ecx,ecx
 
mov       rax,7FF9D5502E50
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L19
 
M00_L18
  
call      qword ptr [7FF9B38CF1F8]
 
test      eax,eax
 
je        short M00_L20
 
M00_L19
  
dec       r14d
 
cmp       r14d,ebp
 
jge       short M00_L17
 
M00_L20
  
sub       r14d,ebp
 
inc       r14d
 
cmp       edi,r14d
 
jne       short M00_L22
 
mov       rdi,rsi
 
M00_L21
  
mov       [rsp+30],rdi
 
mov       rsi,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rsi+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rsi+8],rax
 
add       rsp,40
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L22
  
test      r14d,r14d
 
je        short M00_L23
 
mov       ecx,r14d
 
call      00007FF9B2E51E60
 
mov       rdi,rax
 
mov       r8d,r14d
 
cmp       [rdi],dil
 
lea       rcx,[rdi+0C]
 
mov       edx,ebp
 
lea       rdx,[rsi+rdx*2+0C]
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L21
 
M00_L23
  
mov       rdi,1898E180008
 
jmp       short M00_L21
 
M00_L24
  
mov       rdi,rsi
 
jmp       short M00_L21
 
M00_L25
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,69529C5F31D5
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FF9B30E70D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B30E71E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,69529C5F31D5
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B30E7318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FF9B2D04000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FF9B30766E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FF9B2F05B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FF9B30ECB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2D04000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B339F6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F0D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FF9B304E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FF9B304E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      00007FF9B2E51E60
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2D04000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B339F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F0D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,1898E180008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpaceComparison()
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,40
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,24834000428
 
mov       r8,[r8]
 
mov       [rsp+38],rcx
 
lea       rcx,[rsp+38]
 
mov       [rsp+20],rcx
 
mov       dword ptr [rsp+28],1
 
mov       rcx,r8
 
lea       r8,[rsp+20]
 
mov       rdx,288C5D578F0
 
call      qword ptr [7FF9B2E46C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r15d,[rax+8]
 
test      r15d,r15d
 
je        short M00_L04
 
mov       r8,[rsi+8]
 
mov       r13d,[rsi+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M00_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jle       short M00_L02
 
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
add       r15d,r13d
 
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
mov       r8d,r15d
 
call      qword ptr [7FF9B30DCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30CE778]; System.Text.StringBuilder.ToString()
 
mov       rsi,rax
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        near ptr M00_L24
 
movzx     ecx,word ptr [rsi+0C]
 
cmp       ecx,100
 
jae       short M00_L06
 
mov       rax,7FF9D5502E50
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       short M00_L07
 
M00_L06
  
call      qword ptr [7FF9B38BEAF0]
 
test      eax,eax
 
jne       short M00_L09
 
M00_L07
  
lea       ebp,[rdi-1]
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L08
 
mov       rax,7FF9D5502E50
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       near ptr M00_L24
 
M00_L08
  
call      qword ptr [7FF9B38BEAF0]
 
test      eax,eax
 
je        near ptr M00_L24
 
M00_L09
  
xor       r14d,r14d
 
test      edi,edi
 
jle       short M00_L12
 
M00_L10
  
mov       ecx,r14d
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L14
 
mov       rax,7FF9D5502E50
 
test      byte ptr [rcx+rax],80
 
je        short M00_L12
 
M00_L11
  
inc       r14d
 
cmp       edi,r14d
 
jg        short M00_L10
 
M00_L12
  
lea       ebp,[rdi-1]
 
cmp       ebp,r14d
 
jl        near ptr M00_L20
 
mov       ecx,ebp
 
or        ecx,r14d
 
jl        short M00_L17
 
cmp       edi,ebp
 
jle       short M00_L17
 
M00_L13
  
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L15
 
mov       rax,7FF9D5502E50
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L16
 
M00_L14
  
call      qword ptr [7FF9B38BEAF0]
 
test      eax,eax
 
je        short M00_L12
 
jmp       short M00_L11
 
M00_L15
  
call      qword ptr [7FF9B38BEAF0]
 
test      eax,eax
 
je        short M00_L20
 
M00_L16
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L13
 
jmp       short M00_L20
 
M00_L17
  
cmp       ebp,edi
 
jae       near ptr M00_L25
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L18
 
mov       rax,7FF9D5502E50
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L19
 
M00_L18
  
call      qword ptr [7FF9B38BEAF0]
 
test      eax,eax
 
je        short M00_L20
 
M00_L19
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L17
 
M00_L20
  
sub       ebp,r14d
 
inc       ebp
 
cmp       edi,ebp
 
jne       short M00_L22
 
mov       r15,rsi
 
M00_L21
  
mov       [rsp+30],r15
 
mov       rdi,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rdi+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rdi+8],rax
 
add       rsp,40
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L22
  
test      ebp,ebp
 
je        short M00_L23
 
mov       ecx,ebp
 
call      00007FF9B2E41E60
 
mov       r15,rax
 
mov       r8d,ebp
 
cmp       [r15],r15b
 
lea       rcx,[r15+0C]
 
mov       edx,r14d
 
lea       rdx,[rsi+rdx*2+0C]
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L21
 
M00_L23
  
mov       r15,288C5D40008
 
jmp       short M00_L21
 
M00_L24
  
mov       r15,rsi
 
jmp       short M00_L21
 
M00_L25
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,8C91634DA91
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FF9B30D70D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B30D71E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,8C91634DA91
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B30D7318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FF9B2CF4000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FF9B30666E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FF9B2EF5B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FF9B30DCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2CF4000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B338F6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2EFD470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FF9B303E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FF9B303E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      00007FF9B2E41E60
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2CF4000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B338F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2EFD470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,288C5D40008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpaceComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,23096400428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,271284D78F0
 
call      qword ptr [7FF9B2E76C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FF9B310CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30FE778]; System.Text.StringBuilder.ToString()
 
mov       rsi,rax
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        near ptr M00_L24
 
movzx     ecx,word ptr [rsi+0C]
 
cmp       ecx,100
 
jae       short M00_L06
 
mov       ecx,ecx
 
mov       rax,7FF9D5502E50
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       short M00_L07
 
M00_L06
  
call      qword ptr [7FF9B38EEBE0]
 
test      eax,eax
 
jne       short M00_L09
 
M00_L07
  
lea       ebp,[rdi-1]
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L08
 
mov       rax,7FF9D5502E50
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       near ptr M00_L24
 
M00_L08
  
call      qword ptr [7FF9B38EEBE0]
 
test      eax,eax
 
je        near ptr M00_L24
 
M00_L09
  
xor       r14d,r14d
 
test      edi,edi
 
jle       short M00_L13
 
M00_L10
  
mov       ecx,r14d
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L11
 
mov       rax,7FF9D5502E50
 
test      byte ptr [rcx+rax],80
 
je        short M00_L13
 
jmp       short M00_L12
 
M00_L11
  
call      qword ptr [7FF9B38EEBE0]
 
test      eax,eax
 
je        short M00_L13
 
M00_L12
  
inc       r14d
 
cmp       edi,r14d
 
jg        short M00_L10
 
M00_L13
  
lea       ebp,[rdi-1]
 
cmp       ebp,r14d
 
jl        short M00_L19
 
mov       ecx,ebp
 
or        ecx,r14d
 
jl        short M00_L17
 
cmp       edi,ebp
 
jle       short M00_L17
 
M00_L14
  
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L16
 
mov       rax,7FF9D5502E50
 
test      byte ptr [rcx+rax],80
 
je        short M00_L19
 
M00_L15
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L14
 
jmp       short M00_L19
 
M00_L16
  
call      qword ptr [7FF9B38EEBE0]
 
test      eax,eax
 
je        short M00_L19
 
jmp       short M00_L15
 
M00_L17
  
cmp       ebp,edi
 
jae       near ptr M00_L25
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L22
 
mov       rax,7FF9D5502E50
 
test      byte ptr [rcx+rax],80
 
je        short M00_L19
 
M00_L18
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L17
 
M00_L19
  
sub       ebp,r14d
 
inc       ebp
 
cmp       edi,ebp
 
jne       short M00_L21
 
mov       r15,rsi
 
M00_L20
  
mov       [rsp+38],r15
 
mov       rdi,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rdi+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rdi+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L21
  
test      ebp,ebp
 
je        short M00_L23
 
mov       ecx,ebp
 
call      00007FF9B2E71E60
 
mov       r15,rax
 
mov       r8d,ebp
 
cmp       [r15],r15b
 
lea       rcx,[r15+0C]
 
mov       edx,r14d
 
lea       rdx,[rsi+rdx*2+0C]
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L20
 
M00_L22
  
call      qword ptr [7FF9B38EEBE0]
 
test      eax,eax
 
je        short M00_L19
 
jmp       short M00_L18
 
M00_L23
  
mov       r15,271284C0008
 
jmp       short M00_L20
 
M00_L24
  
mov       r15,rsi
 
jmp       short M00_L20
 
M00_L25
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,21C65E067CD2
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FF9B31070D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B31071E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,21C65E067CD2
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B3107318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FF9B2D24000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FF9B30966E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FF9B2F25B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FF9B310CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2D24000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33BF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F2D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FF9B306E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FF9B306E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      00007FF9B2E71E60
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2D24000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33BF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F2D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,271284C0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpaceComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,2445DC00428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,284EFC278F0
 
call      qword ptr [7FF9B2E66C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30EE778]; System.Text.StringBuilder.ToString()
 
mov       rsi,rax
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        near ptr M00_L24
 
movzx     ecx,word ptr [rsi+0C]
 
cmp       ecx,100
 
jae       short M00_L06
 
mov       rax,7FF9D5502E50
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       short M00_L07
 
M00_L06
  
call      qword ptr [7FF9B38DEBE0]
 
test      eax,eax
 
jne       short M00_L09
 
M00_L07
  
lea       ebp,[rdi-1]
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L08
 
mov       rax,7FF9D5502E50
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       near ptr M00_L24
 
M00_L08
  
call      qword ptr [7FF9B38DEBE0]
 
test      eax,eax
 
je        near ptr M00_L24
 
M00_L09
  
xor       r14d,r14d
 
test      edi,edi
 
jle       short M00_L13
 
M00_L10
  
mov       ecx,r14d
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L11
 
mov       rax,7FF9D5502E50
 
test      byte ptr [rcx+rax],80
 
je        short M00_L13
 
jmp       short M00_L12
 
M00_L11
  
call      qword ptr [7FF9B38DEBE0]
 
test      eax,eax
 
je        short M00_L13
 
M00_L12
  
inc       r14d
 
cmp       edi,r14d
 
jg        short M00_L10
 
M00_L13
  
lea       ebp,[rdi-1]
 
cmp       ebp,r14d
 
jl        short M00_L20
 
mov       ecx,ebp
 
or        ecx,r14d
 
jl        short M00_L17
 
cmp       edi,ebp
 
jle       short M00_L17
 
M00_L14
  
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L15
 
mov       rax,7FF9D5502E50
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L16
 
M00_L15
  
call      qword ptr [7FF9B38DEBE0]
 
test      eax,eax
 
je        short M00_L20
 
M00_L16
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L14
 
jmp       short M00_L20
 
M00_L17
  
cmp       ebp,edi
 
jae       near ptr M00_L25
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L18
 
mov       rax,7FF9D5502E50
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L19
 
M00_L18
  
call      qword ptr [7FF9B38DEBE0]
 
test      eax,eax
 
je        short M00_L20
 
M00_L19
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L17
 
M00_L20
  
sub       ebp,r14d
 
inc       ebp
 
cmp       edi,ebp
 
jne       short M00_L22
 
mov       rdi,rsi
 
M00_L21
  
mov       [rsp+38],rdi
 
mov       rsi,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rsi+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rsi+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L22
  
test      ebp,ebp
 
je        short M00_L23
 
mov       ecx,ebp
 
call      00007FF9B2E61E60
 
mov       rdi,rax
 
mov       r8d,ebp
 
cmp       [rdi],dil
 
lea       rcx,[rdi+0C]
 
mov       edx,r14d
 
lea       rdx,[rsi+rdx*2+0C]
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L21
 
M00_L23
  
mov       rdi,284EFC10008
 
jmp       short M00_L21
 
M00_L24
  
mov       rdi,rsi
 
jmp       short M00_L21
 
M00_L25
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0CBDC4AE3CC1F
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FF9B30F70D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B30F71E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0CBDC4AE3CC1F
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B30F7318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FF9B30866E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FF9B2F15B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FF9B30FCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33AF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F1D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FF9B305E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FF9B305E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      00007FF9B2E61E60
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33AF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F1D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,284EFC10008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpaceComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,1BA03000428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,1FA94D77910
 
call      qword ptr [7FF9B2E56C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30DE778]; System.Text.StringBuilder.ToString()
 
mov       rsi,rax
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        near ptr M00_L24
 
movzx     ecx,word ptr [rsi+0C]
 
cmp       ecx,100
 
jae       short M00_L06
 
mov       rax,7FF9D5502E50
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       short M00_L07
 
M00_L06
  
call      qword ptr [7FF9B38CF528]
 
test      eax,eax
 
jne       short M00_L09
 
M00_L07
  
lea       ebp,[rdi-1]
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L08
 
mov       rax,7FF9D5502E50
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       near ptr M00_L24
 
M00_L08
  
call      qword ptr [7FF9B38CF528]
 
test      eax,eax
 
je        near ptr M00_L24
 
M00_L09
  
xor       r14d,r14d
 
test      edi,edi
 
jle       short M00_L13
 
M00_L10
  
mov       ecx,r14d
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L11
 
mov       rax,7FF9D5502E50
 
test      byte ptr [rcx+rax],80
 
je        short M00_L13
 
jmp       short M00_L12
 
M00_L11
  
call      qword ptr [7FF9B38CF528]
 
test      eax,eax
 
je        short M00_L13
 
M00_L12
  
inc       r14d
 
cmp       edi,r14d
 
jg        short M00_L10
 
M00_L13
  
lea       ebp,[rdi-1]
 
cmp       ebp,r14d
 
jl        short M00_L20
 
mov       ecx,ebp
 
or        ecx,r14d
 
jl        short M00_L17
 
cmp       edi,ebp
 
jle       short M00_L17
 
M00_L14
  
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L15
 
mov       rax,7FF9D5502E50
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L16
 
M00_L15
  
call      qword ptr [7FF9B38CF528]
 
test      eax,eax
 
je        short M00_L20
 
M00_L16
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L14
 
jmp       short M00_L20
 
M00_L17
  
cmp       ebp,edi
 
jae       near ptr M00_L25
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L18
 
mov       rax,7FF9D5502E50
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L19
 
M00_L18
  
call      qword ptr [7FF9B38CF528]
 
test      eax,eax
 
je        short M00_L20
 
M00_L19
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L17
 
M00_L20
  
sub       ebp,r14d
 
inc       ebp
 
cmp       edi,ebp
 
jne       short M00_L22
 
mov       rdi,rsi
 
M00_L21
  
mov       [rsp+38],rdi
 
mov       rsi,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rsi+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rsi+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L22
  
test      ebp,ebp
 
je        short M00_L23
 
mov       ecx,ebp
 
call      00007FF9B2E51E60
 
mov       rdi,rax
 
mov       r8d,ebp
 
cmp       [rdi],dil
 
lea       rcx,[rdi+0C]
 
mov       edx,r14d
 
lea       rdx,[rsi+rdx*2+0C]
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L21
 
M00_L23
  
mov       rdi,1FA94D60008
 
jmp       short M00_L21
 
M00_L24
  
mov       rdi,rsi
 
jmp       short M00_L21
 
M00_L25
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0B477A768EA76
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FF9B30E70D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B30E71E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0B477A768EA76
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B30E7318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FF9B2D04000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FF9B30766E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FF9B2F05B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FF9B30ECB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2D04000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B339F6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F0D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FF9B304E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FF9B304E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      00007FF9B2E51E60
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2D04000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B339F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F0D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,1FA94D60008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpaceComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,2B803800428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,2F8957B7910
 
call      qword ptr [7FF9B2E76C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FF9B310CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30FE778]; System.Text.StringBuilder.ToString()
 
mov       rsi,rax
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        near ptr M00_L24
 
movzx     ecx,word ptr [rsi+0C]
 
cmp       ecx,100
 
jae       short M00_L06
 
mov       rax,7FF9D5502E50
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       short M00_L07
 
M00_L06
  
call      qword ptr [7FF9B38EF528]
 
test      eax,eax
 
jne       short M00_L09
 
M00_L07
  
lea       ebp,[rdi-1]
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L08
 
mov       rax,7FF9D5502E50
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       near ptr M00_L24
 
M00_L08
  
call      qword ptr [7FF9B38EF528]
 
test      eax,eax
 
je        near ptr M00_L24
 
M00_L09
  
xor       r14d,r14d
 
test      edi,edi
 
jle       short M00_L13
 
M00_L10
  
mov       ecx,r14d
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L11
 
mov       rax,7FF9D5502E50
 
test      byte ptr [rcx+rax],80
 
je        short M00_L13
 
jmp       short M00_L12
 
M00_L11
  
call      qword ptr [7FF9B38EF528]
 
test      eax,eax
 
je        short M00_L13
 
M00_L12
  
inc       r14d
 
cmp       edi,r14d
 
jg        short M00_L10
 
M00_L13
  
lea       ebp,[rdi-1]
 
cmp       ebp,r14d
 
jl        short M00_L20
 
mov       ecx,ebp
 
or        ecx,r14d
 
jl        short M00_L17
 
cmp       edi,ebp
 
jle       short M00_L17
 
M00_L14
  
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L15
 
mov       rax,7FF9D5502E50
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L16
 
M00_L15
  
call      qword ptr [7FF9B38EF528]
 
test      eax,eax
 
je        short M00_L20
 
M00_L16
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L14
 
jmp       short M00_L20
 
M00_L17
  
cmp       ebp,edi
 
jae       near ptr M00_L25
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L18
 
mov       rax,7FF9D5502E50
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L19
 
M00_L18
  
call      qword ptr [7FF9B38EF528]
 
test      eax,eax
 
je        short M00_L20
 
M00_L19
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L17
 
M00_L20
  
sub       ebp,r14d
 
inc       ebp
 
cmp       edi,ebp
 
jne       short M00_L22
 
mov       rdi,rsi
 
M00_L21
  
mov       [rsp+38],rdi
 
mov       rsi,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rsi+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rsi+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L22
  
test      ebp,ebp
 
je        short M00_L23
 
mov       ecx,ebp
 
call      00007FF9B2E71E60
 
mov       rdi,rax
 
mov       r8d,ebp
 
cmp       [rdi],dil
 
lea       rcx,[rdi+0C]
 
mov       edx,r14d
 
lea       rdx,[rsi+rdx*2+0C]
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L21
 
M00_L23
  
mov       rdi,2F8957A0008
 
jmp       short M00_L21
 
M00_L24
  
mov       rdi,rsi
 
jmp       short M00_L21
 
M00_L25
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,3B992D0D733B
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FF9B31070D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B31071E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,3B992D0D733B
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B3107318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FF9B2D24000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FF9B30966E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FF9B2F25B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FF9B310CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2D24000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33BF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F2D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FF9B306E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FF9B306E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      00007FF9B2E71E60
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2D24000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33BF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F2D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,2F8957A0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpaceComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,18F24000428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,1CFB5E57910
 
call      qword ptr [7FF9B2E46C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30DCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30CE778]; System.Text.StringBuilder.ToString()
 
mov       rsi,rax
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        near ptr M00_L24
 
movzx     ecx,word ptr [rsi+0C]
 
cmp       ecx,100
 
jae       short M00_L06
 
mov       rax,7FF9D5502E50
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       short M00_L07
 
M00_L06
  
call      qword ptr [7FF9B38BF960]
 
test      eax,eax
 
jne       short M00_L09
 
M00_L07
  
lea       ebp,[rdi-1]
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L08
 
mov       rax,7FF9D5502E50
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       near ptr M00_L24
 
M00_L08
  
call      qword ptr [7FF9B38BF960]
 
test      eax,eax
 
je        near ptr M00_L24
 
M00_L09
  
xor       r14d,r14d
 
test      edi,edi
 
jle       short M00_L13
 
M00_L10
  
mov       ecx,r14d
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L11
 
mov       rax,7FF9D5502E50
 
test      byte ptr [rcx+rax],80
 
je        short M00_L13
 
jmp       short M00_L12
 
M00_L11
  
call      qword ptr [7FF9B38BF960]
 
test      eax,eax
 
je        short M00_L13
 
M00_L12
  
inc       r14d
 
cmp       edi,r14d
 
jg        short M00_L10
 
M00_L13
  
lea       ebp,[rdi-1]
 
cmp       ebp,r14d
 
jl        short M00_L20
 
mov       ecx,ebp
 
or        ecx,r14d
 
jl        short M00_L17
 
cmp       edi,ebp
 
jle       short M00_L17
 
M00_L14
  
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L15
 
mov       rax,7FF9D5502E50
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L16
 
M00_L15
  
call      qword ptr [7FF9B38BF960]
 
test      eax,eax
 
je        short M00_L20
 
M00_L16
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L14
 
jmp       short M00_L20
 
M00_L17
  
cmp       ebp,edi
 
jae       near ptr M00_L25
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L18
 
mov       rax,7FF9D5502E50
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L19
 
M00_L18
  
call      qword ptr [7FF9B38BF960]
 
test      eax,eax
 
je        short M00_L20
 
M00_L19
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L17
 
M00_L20
  
sub       ebp,r14d
 
inc       ebp
 
cmp       edi,ebp
 
jne       short M00_L22
 
mov       rdi,rsi
 
M00_L21
  
mov       [rsp+38],rdi
 
mov       rsi,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rsi+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rsi+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L22
  
test      ebp,ebp
 
je        short M00_L23
 
mov       ecx,ebp
 
call      00007FF9B2E41E60
 
mov       rdi,rax
 
mov       r8d,ebp
 
cmp       [rdi],dil
 
lea       rcx,[rdi+0C]
 
mov       edx,r14d
 
lea       rdx,[rsi+rdx*2+0C]
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L21
 
M00_L23
  
mov       rdi,1CFB5E40008
 
jmp       short M00_L21
 
M00_L24
  
mov       rdi,rsi
 
jmp       short M00_L21
 
M00_L25
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,2ABC25B6C1F8
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FF9B30D70D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B30D71E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,2ABC25B6C1F8
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B30D7318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FF9B2CF4000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FF9B30666E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FF9B2EF5B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FF9B30DCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2CF4000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B338F6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2EFD470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FF9B303E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FF9B303E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      00007FF9B2E41E60
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2CF4000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B338F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2EFD470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,1CFB5E40008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpaceComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,2242A000428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,264B7E37910
 
call      qword ptr [7FF9B2E46C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30DCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30CE778]; System.Text.StringBuilder.ToString()
 
mov       rsi,rax
 
mov       edi,[rsi+8]
 
test      edi,edi
 
je        near ptr M00_L24
 
movzx     ecx,word ptr [rsi+0C]
 
cmp       ecx,100
 
jae       short M00_L06
 
mov       rax,7FF9D5502E50
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       short M00_L07
 
M00_L06
  
call      qword ptr [7FF9B38BF528]
 
test      eax,eax
 
jne       short M00_L09
 
M00_L07
  
lea       ebp,[rdi-1]
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L08
 
mov       rax,7FF9D5502E50
 
test      byte ptr [rcx+rax],80
 
jne       short M00_L09
 
jmp       near ptr M00_L24
 
M00_L08
  
call      qword ptr [7FF9B38BF528]
 
test      eax,eax
 
je        near ptr M00_L24
 
M00_L09
  
xor       r14d,r14d
 
test      edi,edi
 
jle       short M00_L13
 
M00_L10
  
mov       ecx,r14d
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L11
 
mov       rax,7FF9D5502E50
 
test      byte ptr [rcx+rax],80
 
je        short M00_L13
 
jmp       short M00_L12
 
M00_L11
  
call      qword ptr [7FF9B38BF528]
 
test      eax,eax
 
je        short M00_L13
 
M00_L12
  
inc       r14d
 
cmp       edi,r14d
 
jg        short M00_L10
 
M00_L13
  
lea       ebp,[rdi-1]
 
cmp       ebp,r14d
 
jl        short M00_L20
 
mov       ecx,ebp
 
or        ecx,r14d
 
jl        short M00_L17
 
cmp       edi,ebp
 
jle       short M00_L17
 
M00_L14
  
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L15
 
mov       rax,7FF9D5502E50
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L16
 
M00_L15
  
call      qword ptr [7FF9B38BF528]
 
test      eax,eax
 
je        short M00_L20
 
M00_L16
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L14
 
jmp       short M00_L20
 
M00_L17
  
cmp       ebp,edi
 
jae       near ptr M00_L25
 
mov       ecx,ebp
 
movzx     ecx,word ptr [rsi+rcx*2+0C]
 
cmp       ecx,100
 
jae       short M00_L18
 
mov       rax,7FF9D5502E50
 
test      byte ptr [rcx+rax],80
 
je        short M00_L20
 
jmp       short M00_L19
 
M00_L18
  
call      qword ptr [7FF9B38BF528]
 
test      eax,eax
 
je        short M00_L20
 
M00_L19
  
dec       ebp
 
cmp       ebp,r14d
 
jge       short M00_L17
 
M00_L20
  
sub       ebp,r14d
 
inc       ebp
 
cmp       edi,ebp
 
jne       short M00_L22
 
mov       rdi,rsi
 
M00_L21
  
mov       [rsp+38],rdi
 
mov       rsi,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rsi+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rsi+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
M00_L22
  
test      ebp,ebp
 
je        short M00_L23
 
mov       ecx,ebp
 
call      00007FF9B2E41E60
 
mov       rdi,rax
 
mov       r8d,ebp
 
cmp       [rdi],dil
 
lea       rcx,[rdi+0C]
 
mov       edx,r14d
 
lea       rdx,[rsi+rdx*2+0C]
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L21
 
M00_L23
  
mov       rdi,264B7E20008
 
jmp       short M00_L21
 
M00_L24
  
mov       rdi,rsi
 
jmp       short M00_L21
 
M00_L25
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,5AF71A9CD4E0
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FF9B30D70D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B30D71E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,5AF71A9CD4E0
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B30D7318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FF9B2CF4000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FF9B30666E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FF9B2EF5B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FF9B30DCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2CF4000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B338F6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2EFD470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FF9B303E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FF9B303E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      00007FF9B2E41E60
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2CF4000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B338F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2EFD470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,264B7E20008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineComparison()
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,40
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,1D92E800428
 
mov       r8,[r8]
 
mov       [rsp+38],rcx
 
lea       rcx,[rsp+38]
 
mov       [rsp+20],rcx
 
mov       dword ptr [rsp+28],1
 
mov       rcx,r8
 
lea       r8,[rsp+20]
 
mov       rdx,219C08E78F0
 
call      qword ptr [7FF9B2E66C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r15d,[rax+8]
 
test      r15d,r15d
 
je        short M00_L04
 
mov       r8,[rsi+8]
 
mov       r13d,[rsi+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M00_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jle       short M00_L02
 
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
add       r15d,r13d
 
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
mov       r8d,r15d
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30EE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,40
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,9412DABCF723
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FF9B30F70D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B30F71E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,9412DABCF723
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B30F7318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FF9B30866E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FF9B2F15B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FF9B30FCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33AF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F1D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FF9B305E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FF9B305E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      00007FF9B2E61E60
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33AF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F1D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,219C08D0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,239AF000428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,27A3CE078F0
 
call      qword ptr [7FF9B2E56C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30DE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+38],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,3C370CB792B1
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FF9B30E70D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B30E71E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,3C370CB792B1
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B30E7318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FF9B2D04000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FF9B30766E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FF9B2F05B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FF9B30ECB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2D04000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B339F6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F0D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FF9B304E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FF9B304E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      00007FF9B2E51E60
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2D04000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B339F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F0D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,27A3CDF0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,1C5C8400428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,2065A3B78F0
 
call      qword ptr [7FF9B2E76C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FF9B310CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30FE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+38],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0BE93AA6CB2A2
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FF9B31070D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B31071E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0BE93AA6CB2A2
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B3107318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FF9B2D24000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FF9B30966E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FF9B2F25B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FF9B310CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2D24000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33BF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F2D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FF9B306E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FF9B306E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      00007FF9B2E71E60
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2D24000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33BF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F2D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,2065A3A0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,15639000428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,196CB0B78F0
 
call      qword ptr [7FF9B2E76C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FF9B310CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30FE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+38],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0ED64D84644CA
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FF9B31070D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B31071E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0ED64D84644CA
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B3107318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FF9B2D24000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FF9B30966E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FF9B2F25B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FF9B310CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2D24000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33BF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F2D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FF9B306E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FF9B306E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      00007FF9B2E71E60
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2D24000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33BF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F2D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,196CB0A0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,158A8800428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,1993A667910
 
call      qword ptr [7FF9B2E66C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30EE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+38],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0EE6660886D8F
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FF9B30F70D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B30F71E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0EE6660886D8F
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B30F7318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FF9B30866E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FF9B2F15B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FF9B30FCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33AF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F1D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FF9B305E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FF9B305E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      00007FF9B2E61E60
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33AF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F1D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,1993A650008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,1D2D3C00428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,21365B17910
 
call      qword ptr [7FF9B2E66C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30EE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+38],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0A86BE799B1AE
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FF9B30F70D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B30F71E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0A86BE799B1AE
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B30F7318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FF9B30866E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FF9B2F15B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FF9B30FCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33AF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F1D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FF9B305E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FF9B305E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      00007FF9B2E61E60
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33AF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F1D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,21365B00008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,15A5E800428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,19AEC957910
 
call      qword ptr [7FF9B2E46C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30DCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30CE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+38],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,4F11F4E442FE
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FF9B30D70D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B30D71E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,4F11F4E442FE
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B30D7318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FF9B2CF4000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FF9B30666E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FF9B2EF5B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FF9B30DCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2CF4000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B338F6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2EFD470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FF9B303E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FF9B303E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      00007FF9B2E41E60
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2CF4000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B338F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2EFD470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,19AEC940008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineComparison()
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+290]
 
xor       ebp,ebp
 
mov       r14d,[rdi+8]
 
test      r14d,r14d
 
jle       near ptr M00_L05
 
M00_L00
  
mov       ecx,ebp
 
mov       rcx,[rdi+rcx*8+10]
 
mov       r8,1B8B9C00428
 
mov       r8,[r8]
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],1
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,1F94BD97910
 
call      qword ptr [7FF9B2E56C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],r15d
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       ebp
 
cmp       r14d,ebp
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30DE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+38],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
ret
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0B33616EC2CF4
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FF9B30E70D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B30E71E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0B33616EC2CF4
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B30E7318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FF9B2D04000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FF9B30766E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FF9B2F05B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FF9B30ECB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2D04000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B339F6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F0D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FF9B304E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FF9B304E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      00007FF9B2E51E60
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2D04000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B339F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F0D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,1F94BD80008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatCharComparison()
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,50
 
vzeroupper
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
vmovdqa   xmmword ptr [rsp+40],xmm4
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       eax,edi
 
mov       rbp,[rcx+rax*8+10]
 
mov       rcx,offset MT_System.Char
 
call      CORINFO_HELP_NEWSFAST
 
mov       rcx,18D31400428
 
mov       rcx,[rcx]
 
mov       word ptr [rax+8],2C
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+40],xmm0
 
mov       [rsp+40],rbp
 
mov       [rsp+48],rax
 
lea       r8,[rsp+40]
 
mov       [rsp+28],r8
 
mov       dword ptr [rsp+30],2
 
lea       r8,[rsp+28]
 
mov       rdx,1CDC33178F0
 
call      qword ptr [7FF9B2E46C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       ebp,[rax+8]
 
test      ebp,ebp
 
je        short M00_L04
 
mov       r8,[rsi+8]
 
mov       r14d,[rsi+18]
 
lea       ecx,[r14+rbp]
 
cmp       ecx,[r8+8]
 
ja        short M00_L03
 
movsxd    rcx,r14d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       ebp,2
 
jle       short M00_L02
 
movsxd    r8,ebp
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
add       ebp,r14d
 
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       ebp,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
mov       r8d,ebp
 
call      qword ptr [7FF9B30DCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30CE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+38],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,50
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0A2A038680079
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FF9B30D70D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B30D71E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0A2A038680079
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B30D7318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FF9B2CF4000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FF9B30666E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FF9B2EF5B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FF9B30DCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2CF4000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B338F6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2EFD470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FF9B303E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FF9B303E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      00007FF9B2E41E60
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2CF4000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B338F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2EFD470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,1CDC3300008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatCharComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       eax,edi
 
mov       rbp,[rcx+rax*8+10]
 
mov       rcx,offset MT_System.Char
 
call      CORINFO_HELP_NEWSFAST
 
mov       rcx,2EE50800428
 
mov       rcx,[rcx]
 
mov       word ptr [rax+8],2C
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rbp
 
mov       [rsp+40],rax
 
lea       r8,[rsp+38]
 
mov       [rsp+20],r8
 
mov       dword ptr [rsp+28],2
 
lea       r8,[rsp+20]
 
mov       rdx,32EE28278F0
 
call      qword ptr [7FF9B2E66C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30EE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,6DEA72265290
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FF9B30F70D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B30F71E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,6DEA72265290
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B30F7318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FF9B30866E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FF9B2F15B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FF9B30FCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33AF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F1D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FF9B305E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FF9B305E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      00007FF9B2E61E60
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33AF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F1D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,32EE2810008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatCharComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       eax,edi
 
mov       rbp,[rcx+rax*8+10]
 
mov       rcx,offset MT_System.Char
 
call      CORINFO_HELP_NEWSFAST
 
mov       rcx,19138C00428
 
mov       rcx,[rcx]
 
mov       word ptr [rax+8],2C
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rbp
 
mov       [rsp+40],rax
 
lea       r8,[rsp+38]
 
mov       [rsp+20],r8
 
mov       dword ptr [rsp+28],2
 
lea       r8,[rsp+20]
 
mov       rdx,1D1C6B878F0
 
call      qword ptr [7FF9B2E66C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30EE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,3D09CC72A247
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FF9B30F70D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B30F71E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,3D09CC72A247
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B30F7318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FF9B30866E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FF9B2F15B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FF9B30FCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33AF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F1D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FF9B305E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FF9B305E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      00007FF9B2E61E60
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33AF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F1D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,1D1C6B70008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatCharComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       eax,edi
 
mov       rbp,[rcx+rax*8+10]
 
mov       rcx,offset MT_System.Char
 
call      CORINFO_HELP_NEWSFAST
 
mov       rcx,23C2B400428
 
mov       rcx,[rcx]
 
mov       word ptr [rax+8],2C
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rbp
 
mov       [rsp+40],rax
 
lea       r8,[rsp+38]
 
mov       [rsp+20],r8
 
mov       dword ptr [rsp+28],2
 
lea       r8,[rsp+20]
 
mov       rdx,27CBD1678F0
 
call      qword ptr [7FF9B2E46C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30DCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30CE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0D8083688176
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FF9B30D70D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B30D71E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0D8083688176
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B30D7318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FF9B2CF4000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FF9B30666E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FF9B2EF5B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FF9B30DCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2CF4000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B338F6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2EFD470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FF9B303E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FF9B303E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      00007FF9B2E41E60
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2CF4000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B338F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2EFD470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,27CBD150008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatCharComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       eax,edi
 
mov       rbp,[rcx+rax*8+10]
 
mov       rcx,offset MT_System.Char
 
call      CORINFO_HELP_NEWSFAST
 
mov       rcx,21FE8C00428
 
mov       rcx,[rcx]
 
mov       word ptr [rax+8],2C
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rbp
 
mov       [rsp+40],rax
 
lea       r8,[rsp+38]
 
mov       [rsp+20],r8
 
mov       dword ptr [rsp+28],2
 
lea       r8,[rsp+20]
 
mov       rdx,2607AC97910
 
call      qword ptr [7FF9B2E46C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30DCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30CE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,40FC4A3D1523
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FF9B30D70D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B30D71E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,40FC4A3D1523
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B30D7318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FF9B2CF4000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FF9B30666E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FF9B2EF5B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FF9B30DCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2CF4000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B338F6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2EFD470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FF9B303E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FF9B303E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      00007FF9B2E41E60
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2CF4000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B338F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2EFD470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,2607AC80008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatCharComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       eax,edi
 
mov       rbp,[rcx+rax*8+10]
 
mov       rcx,offset MT_System.Char
 
call      CORINFO_HELP_NEWSFAST
 
mov       rcx,1B726000428
 
mov       rcx,[rcx]
 
mov       word ptr [rax+8],2C
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rbp
 
mov       [rsp+40],rax
 
lea       r8,[rsp+38]
 
mov       [rsp+20],r8
 
mov       dword ptr [rsp+28],2
 
lea       r8,[rsp+20]
 
mov       rdx,1F7B7DD7910
 
call      qword ptr [7FF9B2E76C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FF9B310CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30FE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,492D4B061FC5
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FF9B31070D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B31071E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,492D4B061FC5
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B3107318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FF9B2D24000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FF9B30966E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FF9B2F25B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FF9B310CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2D24000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33BF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F2D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FF9B306E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FF9B306E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      00007FF9B2E71E60
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2D24000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33BF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F2D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,1F7B7DC0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatCharComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       eax,edi
 
mov       rbp,[rcx+rax*8+10]
 
mov       rcx,offset MT_System.Char
 
call      CORINFO_HELP_NEWSFAST
 
mov       rcx,21CF3C00428
 
mov       rcx,[rcx]
 
mov       word ptr [rax+8],2C
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rbp
 
mov       [rsp+40],rax
 
lea       r8,[rsp+38]
 
mov       [rsp+20],r8
 
mov       dword ptr [rsp+28],2
 
lea       r8,[rsp+20]
 
mov       rdx,25D85D57910
 
call      qword ptr [7FF9B2E76C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FF9B310CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30FE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0D6278D57E951
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FF9B31070D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B31071E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0D6278D57E951
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B3107318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FF9B2D24000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FF9B30966E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FF9B2F25B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FF9B310CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2D24000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33BF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F2D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FF9B306E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FF9B306E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      00007FF9B2E71E60
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2D24000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33BF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F2D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,25D85D40008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatCharComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       eax,edi
 
mov       rbp,[rcx+rax*8+10]
 
mov       rcx,offset MT_System.Char
 
call      CORINFO_HELP_NEWSFAST
 
mov       rcx,2459E800428
 
mov       rcx,[rcx]
 
mov       word ptr [rax+8],2C
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rbp
 
mov       [rsp+40],rax
 
lea       r8,[rsp+38]
 
mov       [rsp+20],r8
 
mov       dword ptr [rsp+28],2
 
lea       r8,[rsp+20]
 
mov       rdx,28630627910
 
call      qword ptr [7FF9B2E66C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30EE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,3C6F0B389F8D
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FF9B30F70D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B30F71E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,3C6F0B389F8D
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B30F7318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FF9B30866E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FF9B2F15B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FF9B30FCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33AF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F1D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FF9B305E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FF9B305E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      00007FF9B2E61E60
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33AF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F1D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,28630610008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatStringComparison()
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,50
 
vzeroupper
 
xor       eax,eax
 
mov       [rsp+28],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
vmovdqa   xmmword ptr [rsp+40],xmm4
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
mov       rcx,[rcx+r8*8+10]
 
mov       r8,1F5AB000428
 
mov       r8,[r8]
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+40],xmm0
 
mov       [rsp+40],rcx
 
mov       rcx,2363D1A9160
 
mov       [rsp+48],rcx
 
lea       rcx,[rsp+40]
 
mov       [rsp+28],rcx
 
mov       dword ptr [rsp+30],2
 
mov       rcx,r8
 
lea       r8,[rsp+28]
 
mov       rdx,2363D1B78F0
 
call      qword ptr [7FF9B2E76C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       ebp,[rax+8]
 
test      ebp,ebp
 
je        short M00_L04
 
mov       r8,[rsi+8]
 
mov       r14d,[rsi+18]
 
lea       ecx,[r14+rbp]
 
cmp       ecx,[r8+8]
 
ja        short M00_L03
 
movsxd    rcx,r14d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       ebp,2
 
jle       short M00_L02
 
movsxd    r8,ebp
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
add       ebp,r14d
 
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       ebp,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
mov       r8d,ebp
 
call      qword ptr [7FF9B310CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30FE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+38],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+38]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,50
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,2B396B65978F
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FF9B31070D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B31071E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,2B396B65978F
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B3107318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FF9B2D24000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FF9B30966E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FF9B2F25B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FF9B310CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2D24000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33BF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F2D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FF9B306E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FF9B306E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      00007FF9B2E71E60
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2D24000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33BF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F2D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,2363D1A0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
mov       rcx,[rcx+r8*8+10]
 
mov       r8,15359800428
 
mov       r8,[r8]
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rcx
 
mov       rcx,193EB969160
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+38]
 
mov       [rsp+20],rcx
 
mov       dword ptr [rsp+28],2
 
mov       rcx,r8
 
lea       r8,[rsp+20]
 
mov       rdx,193EB9778F0
 
call      qword ptr [7FF9B2E46C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30DCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30CE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,397B1E87A789
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FF9B30D70D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B30D71E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,397B1E87A789
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B30D7318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FF9B2CF4000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FF9B30666E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FF9B2EF5B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FF9B30DCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2CF4000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B338F6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2EFD470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FF9B303E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FF9B303E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      00007FF9B2E41E60
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2CF4000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B338F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2EFD470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,193EB960008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
mov       rcx,[rcx+r8*8+10]
 
mov       r8,1A9DEC00428
 
mov       r8,[r8]
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rcx
 
mov       rcx,1EA6CD39160
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+38]
 
mov       [rsp+20],rcx
 
mov       dword ptr [rsp+28],2
 
mov       rcx,r8
 
lea       r8,[rsp+20]
 
mov       rdx,1EA6CD478F0
 
call      qword ptr [7FF9B2E56C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30DE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0D00DC2B9533F
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FF9B30E70D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B30E71E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0D00DC2B9533F
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B30E7318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FF9B2D04000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FF9B30766E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FF9B2F05B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FF9B30ECB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2D04000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B339F6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F0D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FF9B304E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FF9B304E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      00007FF9B2E51E60
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2D04000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B339F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F0D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,1EA6CD30008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
mov       rcx,[rcx+r8*8+10]
 
mov       r8,2146B800428
 
mov       r8,[r8]
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rcx
 
mov       rcx,254FD5E9160
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+38]
 
mov       [rsp+20],rcx
 
mov       dword ptr [rsp+28],2
 
mov       rcx,r8
 
lea       r8,[rsp+20]
 
mov       rdx,254FD5F78F0
 
call      qword ptr [7FF9B2E76C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FF9B310CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30FE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,49EB3DD87F96
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FF9B31070D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B31071E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,49EB3DD87F96
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B3107318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FF9B2D24000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FF9B30966E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FF9B2F25B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FF9B310CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2D24000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33BF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F2D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FF9B306E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FF9B306E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      00007FF9B2E71E60
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2D24000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33BF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F2D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,254FD5E0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
mov       rcx,[rcx+r8*8+10]
 
mov       r8,1F2D8400428
 
mov       r8,[r8]
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rcx
 
mov       rcx,23362489160
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+38]
 
mov       [rsp+20],rcx
 
mov       dword ptr [rsp+28],2
 
mov       rcx,r8
 
lea       r8,[rsp+20]
 
mov       rdx,23362497910
 
call      qword ptr [7FF9B2E66C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30EE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0D8B535B99FD5
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FF9B30F70D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B30F71E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0D8B535B99FD5
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B30F7318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FF9B30866E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FF9B2F15B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FF9B30FCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33AF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F1D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FF9B305E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FF9B305E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      00007FF9B2E61E60
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33AF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F1D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,23362480008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
mov       rcx,[rcx+r8*8+10]
 
mov       r8,26136400428
 
mov       r8,[r8]
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rcx
 
mov       rcx,2A1C8139160
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+38]
 
mov       [rsp+20],rcx
 
mov       dword ptr [rsp+28],2
 
mov       rcx,r8
 
lea       r8,[rsp+20]
 
mov       rdx,2A1C8147910
 
call      qword ptr [7FF9B2E66C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30EE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,0C12BF335242E
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FF9B30F70D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B30F71E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,0C12BF335242E
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B30F7318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FF9B30866E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FF9B2F15B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FF9B30FCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33AF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F1D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FF9B305E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FF9B305E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      00007FF9B2E61E60
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33AF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F1D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,2A1C8130008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L06
 
mov       r8d,edi
 
mov       rcx,[rcx+r8*8+10]
 
mov       r8,12A04000428
 
mov       r8,[r8]
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rcx
 
mov       rcx,12982D49160
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+38]
 
mov       [rsp+20],rcx
 
mov       dword ptr [rsp+28],2
 
mov       rcx,r8
 
lea       r8,[rsp+20]
 
mov       rdx,12982D57910
 
call      qword ptr [7FF9B2E56C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30DE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,90B9C09716FF
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FF9B30E70D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B30E71E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,90B9C09716FF
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B30E7318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FF9B2D04000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FF9B30766E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FF9B2F05B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FF9B30ECB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2D04000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B339F6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F0D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FF9B304E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FF9B304E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      00007FF9B2E51E60
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2D04000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B339F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F0D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,12982D40008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatStringComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,48
 
vzeroupper
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rsp+20],xmm4
 
vmovdqa   xmmword ptr [rsp+30],xmm4
 
xor       eax,eax
 
mov       [rsp+40],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       rcx,[rbx+290]
 
cmp       dword ptr [rcx+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       rcx,[rbx+290]
 
cmp       edi,[rcx+8]
 
jae       near ptr M00_L07
 
mov       r8d,edi
 
mov       rcx,[rcx+r8*8+10]
 
mov       r8,225C1000428
 
mov       r8,[r8]
 
vxorps    xmm0,xmm0,xmm0
 
vmovdqu   xmmword ptr [rsp+38],xmm0
 
mov       [rsp+38],rcx
 
mov       rcx,2664EF39160
 
mov       [rsp+40],rcx
 
lea       rcx,[rsp+38]
 
mov       [rsp+20],rcx
 
mov       dword ptr [rsp+28],2
 
mov       rcx,r8
 
lea       r8,[rsp+20]
 
mov       rdx,2664EF47910
 
call      qword ptr [7FF9B2E56C88]; System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
test      rax,rax
 
je        short M00_L04
 
lea       rdx,[rax+0C]
 
mov       r8d,[rax+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
je        short M00_L06
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30DE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,48
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
movzx     eax,word ptr [rdx+2]
 
mov       [rcx+2],ax
 
jmp       short M00_L01
 
M00_L07
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.FormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
push      rbp
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+20]
 
xor       eax,eax
 
mov       [rbp+8],rax
 
vxorps    xmm4,xmm4,xmm4
 
vmovdqa   xmmword ptr [rbp+10],xmm4
 
mov       [rbp+20],rax
 
mov       rax,46F4257104B9
 
mov       [rbp],rax
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rsi,rsi
 
je        near ptr M01_L03
 
test      [rsp],esp
 
sub       rsp,200
 
lea       rdx,[rsp+20]
 
xor       ecx,ecx
 
mov       [rbp+8],rcx
 
mov       [rbp+18],rdx
 
mov       dword ptr [rbp+20],100
 
mov       [rbp+10],ecx
 
mov       edx,[rsi+8]
 
mov       ecx,[rbx+8]
 
lea       edx,[rdx+rcx*8]
 
cmp       edx,[rbp+20]
 
ja        short M01_L02
 
M01_L00
  
lea       rcx,[rbp+8]
 
mov       rdx,rdi
 
mov       r8,rsi
 
mov       r9,rbx
 
call      qword ptr [7FF9B30E70D8]; System.Text.ValueStringBuilder.AppendFormatHelper(System.IFormatProvider, System.String, System.ReadOnlySpan`1)
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B30E71E0]; System.Text.ValueStringBuilder.ToString()
 
mov       rcx,46F4257104B9
 
cmp       [rbp],rcx
 
je        short M01_L01
 
call      CORINFO_HELP_FAIL_FAST
 
M01_L01
  
nop
 
lea       rsp,[rbp+28]
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       rbp
 
ret
 
M01_L02
  
sub       edx,[rbp+10]
 
lea       rcx,[rbp+8]
 
call      qword ptr [7FF9B30E7318]
 
jmp       short M01_L00
 
M01_L03
  
mov       ecx,2F1
 
mov       rdx,7FF9B2D04000
 
call      CORINFO_HELP_STRCNS
 
mov       rcx,rax
 
call      qword ptr [7FF9B30766E8]
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M02_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M02_L03
 
test      r8b,18
 
jne       short M02_L01
 
test      r8b,4
 
je        short M02_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M02_L00
  
ret
 
M02_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M02_L00
 
M02_L02
  
test      r8,r8
 
je        short M02_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M02_L06
 
jmp       short M02_L00
 
M02_L03
  
cmp       r8,40
 
ja        short M02_L07
 
M02_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M02_L11
 
M02_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M02_L00
 
M02_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M02_L00
 
M02_L07
  
cmp       r8,800
 
ja        short M02_L10
 
mov       r9,r8
 
shr       r9,6
 
M02_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M02_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M02_L04
 
jmp       short M02_L05
 
M02_L09
  
cmp       rcx,rdx
 
je        near ptr M02_L00
 
M02_L10
  
jmp       qword ptr [7FF9B2F05B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M02_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M02_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FF9B30ECB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2D04000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B339F6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F0D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FF9B304E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FF9B304E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      00007FF9B2E51E60
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2D04000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B339F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F0D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,2664EF30008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatChar()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       ecx,2C
 
call      qword ptr [7FF9B38B7D98]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-58],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       edi,ecx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
cmp       dword ptr [rbx+8],0
 
je        near ptr M01_L13
 
mov       rcx,1C4C1408B58
 
mov       r14,[rcx]
 
mov       rcx,[r14+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r14+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r15,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r15],r15b
 
mov       rcx,r15
 
xor       edx,edx
 
call      qword ptr [7FF9B310C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-50],r15
 
mov       r13d,[rbx+8]
 
xor       r12d,r12d
 
test      r13d,r13d
 
jle       near ptr M01_L10
 
mov       r8d,[rbx+8]
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r14d,[r8+8]
 
test      r14d,r14d
 
je        short M01_L06
 
mov       r8,[r15+8]
 
mov       eax,[r15+18]
 
mov       [rbp-44],eax
 
lea       ecx,[rax+r14]
 
cmp       ecx,[r8+8]
 
ja        short M01_L05
 
movsxd    rcx,eax
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r14d,2
 
jg        short M01_L03
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r14d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r14d
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       eax,r14d
 
add       eax,[rbp-44]
 
mov       [r15+18],eax
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r15
 
mov       r8d,r14d
 
call      qword ptr [7FF9B310CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r13d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,20553541C14
 
mov       rcx,[r15+8]
 
mov       r8d,[r15+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r15+18],eax
 
jmp       short M01_L09
 
M01_L07
  
movzx     edx,di
 
mov       rcx,r15
 
call      qword ptr [7FF9B310C3D8]; System.Text.StringBuilder.Append(Char)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r15
 
mov       r8d,2
 
call      qword ptr [7FF9B310CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r13d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r15
 
call      qword ptr [7FF9B30FE778]; System.Text.StringBuilder.ToString()
 
mov       [rbp-58],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-58]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,20553540008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r14+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35DEF28]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r14,2C
 
lock dec  dword ptr [r14]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r14+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r15,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,1C4C1408B58
 
mov       r14,[rcx]
 
mov       r15,[r14+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r15+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-50]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r15+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FF9B310C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-50]
 
mov       rcx,[r15+8]
 
call      qword ptr [r15+18]
 
test      eax,eax
 
mov       rbx,[rbp-50]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r14+20],0
 
jne       short M01_L19
 
lea       rcx,[r14+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r14+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r14+28]
 
jg        short M01_L20
 
mov       rcx,[r14+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35DEEF8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r14,2C
 
lock dec  dword ptr [r14]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatChar()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       ecx,2C
 
call      qword ptr [7FF9B38A7618]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-58],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       edi,ecx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
cmp       dword ptr [rbx+8],0
 
je        near ptr M01_L13
 
mov       rcx,2DE2A008B58
 
mov       r14,[rcx]
 
mov       rcx,[r14+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r14+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r15,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r15],r15b
 
mov       rcx,r15
 
xor       edx,edx
 
call      qword ptr [7FF9B30FC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-50],r15
 
mov       r13d,[rbx+8]
 
xor       r12d,r12d
 
test      r13d,r13d
 
jle       near ptr M01_L10
 
mov       r8d,[rbx+8]
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r14d,[r8+8]
 
test      r14d,r14d
 
je        short M01_L06
 
mov       r8,[r15+8]
 
mov       eax,[r15+18]
 
mov       [rbp-44],eax
 
lea       ecx,[rax+r14]
 
cmp       ecx,[r8+8]
 
ja        short M01_L05
 
movsxd    rcx,eax
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r14d,2
 
jg        short M01_L03
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r14d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r14d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       eax,r14d
 
add       eax,[rbp-44]
 
mov       [r15+18],eax
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r15
 
mov       r8d,r14d
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r13d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,31EBBDB1C14
 
mov       rcx,[r15+8]
 
mov       r8d,[r15+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r15+18],eax
 
jmp       short M01_L09
 
M01_L07
  
movzx     edx,di
 
mov       rcx,r15
 
call      qword ptr [7FF9B30FC3D8]; System.Text.StringBuilder.Append(Char)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r15
 
mov       r8d,2
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r13d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r15
 
call      qword ptr [7FF9B30EE778]; System.Text.StringBuilder.ToString()
 
mov       [rbp-58],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-58]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,31EBBDB0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r14+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35CEC10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r14,2C
 
lock dec  dword ptr [r14]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r14+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r15,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,2DE2A008B58
 
mov       r14,[rcx]
 
mov       r15,[r14+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r15+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-50]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r15+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FF9B30FC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-50]
 
mov       rcx,[r15+8]
 
call      qword ptr [r15+18]
 
test      eax,eax
 
mov       rbx,[rbp-50]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r14+20],0
 
jne       short M01_L19
 
lea       rcx,[r14+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r14+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r14+28]
 
jg        short M01_L20
 
mov       rcx,[r14+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35CEBE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r14,2C
 
lock dec  dword ptr [r14]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatChar()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       ecx,2C
 
call      qword ptr [7FF9B38A7618]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       edi,ecx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,19FF0008B58
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FF9B30FC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,1E0820A1C14
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
movzx     edx,di
 
mov       rcx,r13
 
call      qword ptr [7FF9B30FC3D8]; System.Text.StringBuilder.Append(Char)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FF9B30EE778]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,1E0820A0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35CEFA0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,19FF0008B58
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FF9B30FC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35CEF70]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatChar()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       ecx,2C
 
call      qword ptr [7FF9B3897D98]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       edi,ecx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,1FDB4408B58
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FF9B30EC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,23E46261C14
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
movzx     edx,di
 
mov       rcx,r13
 
call      qword ptr [7FF9B30EC3D8]; System.Text.StringBuilder.Append(Char)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FF9B30DE778]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,23E46260008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35BEF28]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,1FDB4408B58
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FF9B30EC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35BEEF8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatChar()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       ecx,2C
 
call      qword ptr [7FF9B38BD230]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       edi,ecx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,28EE1008B58
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FF9B310C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FF9B310CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,2CF6F0A1C14
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
movzx     edx,di
 
mov       rcx,r13
 
call      qword ptr [7FF9B310C3D8]; System.Text.StringBuilder.Append(Char)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FF9B310CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FF9B30FE778]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,2CF6F0A0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35DEFA0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,28EE1008B58
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FF9B310C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35DEF70]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatChar()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       ecx,2C
 
call      qword ptr [7FF9B389D230]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       edi,ecx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,2D15C808B58
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FF9B30EC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,311EE951C14
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
movzx     edx,di
 
mov       rcx,r13
 
call      qword ptr [7FF9B30EC3D8]; System.Text.StringBuilder.Append(Char)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FF9B30DE778]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,311EE950008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35BEF28]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,2D15C808B58
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FF9B30EC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35BEEF8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatChar()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       ecx,2C
 
call      qword ptr [7FF9B389D230]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       edi,ecx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,2AA22808B58
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FF9B30EC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,2EAB46C1C14
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
movzx     edx,di
 
mov       rcx,r13
 
call      qword ptr [7FF9B30EC3D8]; System.Text.StringBuilder.Append(Char)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FF9B30DE778]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,2EAB46C0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35BEF28]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,2AA22808B58
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FF9B30EC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35BEEF8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatChar()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       ecx,2C
 
call      qword ptr [7FF9B38AD230]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(Char, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       edi,ecx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,21202006B60
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FF9B30FC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,25293EF1C14
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
movzx     edx,di
 
mov       rcx,r13
 
call      qword ptr [7FF9B30FC3D8]; System.Text.StringBuilder.Append(Char)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FF9B30EE778]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,25293EF0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35CEF28]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,21202006B60
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FF9B30FC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35CEEF8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatString()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       rcx,2217EE89160
 
call      qword ptr [7FF9B38B7DB0]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		delimiter ??= ControlChars.CommaSpace;
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-58],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       rsi,rcx
 
mov       rdi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
cmp       dword ptr [rbx+8],0
 
je        near ptr M01_L13
 
mov       rcx,2217EE89160
 
test      rsi,rsi
 
cmove     rsi,rcx
 
mov       rcx,1E0ED008B58
 
mov       r14,[rcx]
 
mov       rcx,[r14+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r14+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r15,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r15],r15b
 
mov       rcx,r15
 
xor       edx,edx
 
call      qword ptr [7FF9B310C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-50],r15
 
mov       r13d,[rbx+8]
 
xor       r12d,r12d
 
test      r13d,r13d
 
jle       near ptr M01_L10
 
mov       r8d,[rbx+8]
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r14d,[r8+8]
 
test      r14d,r14d
 
je        short M01_L06
 
mov       r8,[r15+8]
 
mov       eax,[r15+18]
 
mov       [rbp-44],eax
 
lea       ecx,[rax+r14]
 
cmp       ecx,[r8+8]
 
ja        short M01_L05
 
movsxd    rcx,eax
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r14d,2
 
jg        short M01_L03
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r14d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r14d
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
add       r14d,[rbp-44]
 
mov       [r15+18],r14d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r15
 
mov       r8d,r14d
 
call      qword ptr [7FF9B310CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r13d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rdi],0
 
je        short M01_L07
 
mov       rdx,2217EE81C14
 
mov       rcx,[r15+8]
 
mov       r8d,[r15+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r15+18],eax
 
jmp       short M01_L09
 
M01_L07
  
mov       rcx,r15
 
mov       rdx,rsi
 
call      qword ptr [7FF9B310C2A0]; System.Text.StringBuilder.Append(System.String)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r15
 
mov       r8d,2
 
call      qword ptr [7FF9B310CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r13d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r15
 
call      qword ptr [7FF9B30FE778]; System.Text.StringBuilder.ToString()
 
mov       [rbp-58],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-58]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,2217EE80008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r14+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35DEF28]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r14,2C
 
lock dec  dword ptr [r14]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r14+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r15,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,1E0ED008B58
 
mov       r14,[rcx]
 
mov       r15,[r14+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r15+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-50]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r15+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FF9B310C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-50]
 
mov       rcx,[r15+8]
 
call      qword ptr [r15+18]
 
test      eax,eax
 
mov       rbx,[rbp-50]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r14+20],0
 
jne       short M01_L19
 
lea       rcx,[r14+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r14+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r14+28]
 
jg        short M01_L20
 
mov       rcx,[r14+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35DEEF8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r14,2C
 
lock dec  dword ptr [r14]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatString()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       rcx,2396D0C9160
 
call      qword ptr [7FF9B38B7DB0]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		delimiter ??= ControlChars.CommaSpace;
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-58],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
cmp       dword ptr [rbx+8],0
 
je        near ptr M01_L13
 
mov       rcx,2396D0C9160
 
test      rdi,rdi
 
cmove     rdi,rcx
 
mov       rcx,1F8DB408B58
 
mov       r14,[rcx]
 
mov       rcx,[r14+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r14+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r15,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r15],r15b
 
mov       rcx,r15
 
xor       edx,edx
 
call      qword ptr [7FF9B310C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-50],r15
 
mov       r13d,[rbx+8]
 
xor       r12d,r12d
 
test      r13d,r13d
 
jle       near ptr M01_L10
 
mov       r8d,[rbx+8]
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r14d,[r8+8]
 
test      r14d,r14d
 
je        short M01_L06
 
mov       r8,[r15+8]
 
mov       eax,[r15+18]
 
mov       [rbp-44],eax
 
lea       ecx,[rax+r14]
 
cmp       ecx,[r8+8]
 
ja        short M01_L05
 
movsxd    rcx,eax
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r14d,2
 
jg        short M01_L03
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r14d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r14d
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       eax,r14d
 
add       eax,[rbp-44]
 
mov       [r15+18],eax
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r15
 
mov       r8d,r14d
 
call      qword ptr [7FF9B310CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r13d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,2396D0C1C14
 
mov       rcx,[r15+8]
 
mov       r8d,[r15+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r15+18],eax
 
jmp       short M01_L09
 
M01_L07
  
mov       rcx,r15
 
mov       rdx,rdi
 
call      qword ptr [7FF9B310C2A0]; System.Text.StringBuilder.Append(System.String)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r15
 
mov       r8d,2
 
call      qword ptr [7FF9B310CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r13d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r15
 
call      qword ptr [7FF9B30FE778]; System.Text.StringBuilder.ToString()
 
mov       [rbp-58],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-58]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,2396D0C0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r14+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35DEFA0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r14,2C
 
lock dec  dword ptr [r14]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r14+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r15,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,1F8DB408B58
 
mov       r14,[rcx]
 
mov       r15,[r14+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r15+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-50]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r15+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FF9B310C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-50]
 
mov       rcx,[r15+8]
 
call      qword ptr [r15+18]
 
test      eax,eax
 
mov       rbx,[rbp-50]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r14+20],0
 
jne       short M01_L19
 
lea       rcx,[r14+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r14+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r14+28]
 
jg        short M01_L20
 
mov       rcx,[r14+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35DEF70]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r14,2C
 
lock dec  dword ptr [r14]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatString()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       rcx,26E01CB9160
 
call      qword ptr [7FF9B3897DB0]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		delimiter ??= ControlChars.CommaSpace;
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,26E01CB9160
 
test      rdi,rdi
 
cmove     rdi,rcx
 
mov       rcx,22D6FC06B60
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FF9B30EC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        near ptr M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,26E01CB1C14
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
add       r8d,2
 
mov       [r13+18],r8d
 
jmp       short M01_L09
 
M01_L07
  
mov       rcx,r13
 
mov       rdx,rdi
 
call      qword ptr [7FF9B30EC2A0]; System.Text.StringBuilder.Append(System.String)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FF9B30DE778]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,26E01CB0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35BEFA0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,22D6FC06B60
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FF9B30EC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35BEF70]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatString()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       rcx,2664C7F9160
 
call      qword ptr [7FF9B38A7DB0]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		delimiter ??= ControlChars.CommaSpace;
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,2664C7F9160
 
test      rdi,rdi
 
cmove     rdi,rcx
 
mov       rcx,225BA808B58
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FF9B30FC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,2664C7F1C14
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
mov       rcx,r13
 
mov       rdx,rdi
 
call      qword ptr [7FF9B30FC2A0]; System.Text.StringBuilder.Append(System.String)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FF9B30EE778]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,2664C7F0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35CEF28]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,225BA808B58
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FF9B30FC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35CEEF8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatString()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       rcx,1F3FA949160
 
call      qword ptr [7FF9B38BD248]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		delimiter ??= ControlChars.CommaSpace;
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,1F3FA949160
 
test      rdi,rdi
 
cmove     rdi,rcx
 
mov       rcx,1B368808B58
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FF9B310C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FF9B310CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,1F3FA941C14
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
mov       rcx,r13
 
mov       rdx,rdi
 
call      qword ptr [7FF9B310C2A0]; System.Text.StringBuilder.Append(System.String)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FF9B310CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FF9B30FE778]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,1F3FA940008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35DEFA0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,1B368808B58
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FF9B310C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35DEF70]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatString()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       rcx,25895E09160
 
call      qword ptr [7FF9B38BD578]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		delimiter ??= ControlChars.CommaSpace;
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,25895E09160
 
test      rdi,rdi
 
cmove     rdi,rcx
 
mov       rcx,21804008B58
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FF9B310C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L10
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FF9B310CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L11
 
cmp       r12d,ecx
 
jge       short M01_L09
 
cmp       byte ptr [rsi],0
 
je        short M01_L07
 
mov       rdx,25895E01C14
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L08
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L09
 
M01_L07
  
mov       rcx,r13
 
mov       rdx,rdi
 
call      qword ptr [7FF9B310C2A0]; System.Text.StringBuilder.Append(System.String)
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FF9B310CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
add       r12d,1
 
jo        short M01_L11
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L10
  
mov       rcx,r13
 
call      qword ptr [7FF9B30FE778]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L11
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,25895E00008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35DEF28]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,21804008B58
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FF9B310C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35DEEF8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatString()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       rcx,2661B659160
 
call      qword ptr [7FF9B38AD248]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		delimiter ??= ControlChars.CommaSpace;
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       rdi,rcx
 
mov       rsi,rdx
 
mov       rbx,r8
 
test      rbx,rbx
 
je        near ptr M01_L13
 
mov       r14d,[rbx+8]
 
test      r14d,r14d
 
je        near ptr M01_L13
 
mov       rcx,2661B659160
 
test      rdi,rdi
 
cmove     rdi,rcx
 
mov       rcx,22589806B60
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L14
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L14
 
M01_L00
  
mov       r13,[rbp-40]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FF9B30FC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L08
 
M01_L02
  
mov       r8d,r12d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L03
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L04
 
M01_L03
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L04
  
mov       [r13+18],r15d
 
jmp       short M01_L06
 
M01_L05
  
mov       rcx,r13
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L10
 
cmp       r12d,ecx
 
jge       short M01_L07
 
cmp       byte ptr [rsi],0
 
je        short M01_L11
 
mov       rdx,2661B651C14
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L09
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
M01_L07
  
add       r12d,1
 
jo        short M01_L10
 
cmp       r12d,r14d
 
jl        near ptr M01_L02
 
M01_L08
  
mov       rcx,r13
 
call      qword ptr [7FF9B30EE778]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L12
 
M01_L09
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L07
 
M01_L10
  
call      CORINFO_HELP_OVERFLOW
 
M01_L11
  
mov       rcx,r13
 
mov       rdx,rdi
 
call      qword ptr [7FF9B30FC2A0]; System.Text.StringBuilder.Append(System.String)
 
jmp       short M01_L07
 
M01_L12
  
mov       rcx,rsp
 
call      M01_L16
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rax,2661B650008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35CEF28]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L15
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L00
 
M01_L15
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L01
 
M01_L16
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,22589806B60
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L17
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L21
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FF9B30FC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L18
 
M01_L17
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L21
 
M01_L18
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L19
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L21
 
M01_L19
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L20
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35CEEF8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L21
 
M01_L20
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L21
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ConcatString()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       dword ptr [rsp+28],1
 
mov       r8,[rbx+290]
 
lea       rdx,[rsp+28]
 
mov       rcx,2107CF79160
 
call      qword ptr [7FF9B389D248]; DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.Concat(System.String, Boolean ByRef, System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		delimiter ??= ControlChars.CommaSpace;
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			var itemCount = args.Length;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < itemCount; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < itemCount - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = addLineFeed ? sb.AppendLine() : sb.Append(delimiter);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+80]
 
xor       eax,eax
 
mov       [rbp-50],rax
 
mov       [rbp-40],rax
 
mov       [rbp-60],rsp
 
mov       rdi,rcx
 
mov       rbx,rdx
 
mov       rsi,r8
 
test      rsi,rsi
 
je        near ptr M01_L14
 
mov       r14d,[rsi+8]
 
test      r14d,r14d
 
je        near ptr M01_L14
 
test      rdi,rdi
 
je        near ptr M01_L15
 
M01_L00
  
mov       rcx,1CFEB008B58
 
mov       r15,[rcx]
 
mov       rcx,[r15+20]
 
mov       [rbp-40],rcx
 
cmp       qword ptr [rbp-40],0
 
je        near ptr M01_L16
 
lea       rcx,[r15+20]
 
mov       r8,[rbp-40]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-40]
 
jne       near ptr M01_L16
 
M01_L01
  
mov       r13,[rbp-40]
 
M01_L02
  
xor       ecx,ecx
 
mov       [rbp-40],rcx
 
cmp       [r13],r13b
 
mov       rcx,r13
 
xor       edx,edx
 
call      qword ptr [7FF9B30EC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-48],r13
 
xor       r12d,r12d
 
test      r14d,r14d
 
jle       near ptr M01_L11
 
M01_L03
  
mov       r8d,r12d
 
mov       r8,[rsi+r8*8+10]
 
test      r8,r8
 
je        short M01_L07
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L07
 
mov       rcx,[r13+8]
 
mov       eax,[r13+18]
 
lea       r15d,[rax+r8]
 
cmp       r15d,[rcx+8]
 
ja        short M01_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L04
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L05
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L05
 
M01_L04
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L05
  
mov       [r13+18],r15d
 
jmp       short M01_L07
 
M01_L06
  
mov       rcx,r13
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L07
  
mov       ecx,r14d
 
sub       ecx,1
 
jo        short M01_L12
 
cmp       r12d,ecx
 
jge       short M01_L10
 
cmp       byte ptr [rbx],0
 
je        short M01_L08
 
mov       rdx,2107CF71C14
 
mov       rcx,[r13+8]
 
mov       r8d,[r13+18]
 
lea       eax,[r8+2]
 
cmp       [rcx+8],eax
 
jb        short M01_L09
 
movsxd    rdx,r8d
 
lea       rcx,[rcx+rdx*2+10]
 
mov       word ptr [rcx],0D
 
mov       word ptr [rcx+2],0A
 
mov       [r13+18],eax
 
jmp       short M01_L10
 
M01_L08
  
mov       rcx,r13
 
mov       rdx,rdi
 
call      qword ptr [7FF9B30EC2A0]; System.Text.StringBuilder.Append(System.String)
 
jmp       short M01_L10
 
M01_L09
  
mov       rcx,r13
 
mov       r8d,2
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L10
  
add       r12d,1
 
jo        short M01_L12
 
cmp       r12d,r14d
 
jl        near ptr M01_L03
 
M01_L11
  
mov       rcx,r13
 
call      qword ptr [7FF9B30DE778]; System.Text.StringBuilder.ToString()
 
mov       [rbp-50],rax
 
jmp       short M01_L13
 
M01_L12
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L13
  
mov       rcx,rsp
 
call      M01_L18
 
nop
 
mov       rax,[rbp-50]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L14
  
mov       rax,2107CF70008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L15
  
mov       rdi,2107CF79160
 
jmp       near ptr M01_L00
 
M01_L16
  
mov       rcx,[r15+18]
 
lea       rdx,[rbp-40]
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35BEF28]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L17
 
add       r15,2C
 
lock dec  dword ptr [r15]
 
jmp       near ptr M01_L01
 
M01_L17
  
mov       rax,[r15+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r13,rax
 
jmp       near ptr M01_L02
 
M01_L18
  
push      rbp
 
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+80]
 
mov       rcx,1CFEB008B58
 
mov       r15,[rcx]
 
mov       r13,[r15+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r13+18],rcx
 
jne       short M01_L19
 
mov       rbx,[rbp-48]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r13+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L23
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FF9B30EC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L20
 
M01_L19
  
mov       rdx,[rbp-48]
 
mov       rcx,[r13+8]
 
call      qword ptr [r13+18]
 
test      eax,eax
 
mov       rbx,[rbp-48]
 
je        short M01_L23
 
M01_L20
  
cmp       qword ptr [r15+20],0
 
jne       short M01_L21
 
lea       rcx,[r15+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L23
 
M01_L21
  
lea       rcx,[r15+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[r15+28]
 
jg        short M01_L22
 
mov       rcx,[r15+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35BEEF8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L23
 
M01_L22
  
add       r15,2C
 
lock dec  dword ptr [r15]
 
M01_L23
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinCharComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       dword ptr [rsp+30],2C
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
lea       r8,[rsp+30]
 
mov       rcx,rsi
 
mov       rdx,7FF9B38A30B0
 
mov       r9d,1
 
call      qword ptr [7FF9B38975E8]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+90]
 
test      rbp,rbp
 
je        near ptr M01_L20
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L21
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L05
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L22
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L05
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L05
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L04
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
je        short M01_L02
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L05
 
M01_L02
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L05
 
M01_L04
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L05
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L14
 
M01_L06
  
test      esi,esi
 
je        short M01_L08
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[rsi+r13]
 
cmp       ecx,[r8+8]
 
ja        near ptr M01_L15
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        near ptr M01_L16
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
je        near ptr M01_L18
 
M01_L07
  
add       r13d,esi
 
mov       [rbx+18],r13d
 
M01_L08
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        short M01_L13
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L09
  
test      rcx,rcx
 
je        short M01_L13
 
lea       rdx,[rcx+0C]
 
mov       r13d,[rcx+8]
 
test      r13d,r13d
 
je        short M01_L13
 
mov       r8,[rbx+8]
 
mov       r12d,[rbx+18]
 
lea       ecx,[r12+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L12
 
movsxd    rcx,r12d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r13d,2
 
jg        short M01_L17
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r13d,2
 
je        short M01_L11
 
M01_L10
  
add       r13d,r12d
 
mov       [rbx+18],r13d
 
jmp       short M01_L13
 
M01_L11
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L10
 
M01_L12
  
mov       rcx,rbx
 
mov       r8d,r13d
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L13
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L06
 
M01_L14
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L15
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M01_L08
 
M01_L16
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L07
 
M01_L17
  
movsxd    r8,r13d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L10
 
M01_L18
  
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       near ptr M01_L07
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L09
 
M01_L20
  
mov       ecx,6
 
call      qword ptr [7FF9B304ED00]
 
int       3
 
M01_L21
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L22
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinCharComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       dword ptr [rsp+30],2C
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
lea       r8,[rsp+30]
 
mov       rcx,rsi
 
mov       rdx,7FF9B38934E0
 
mov       r9d,1
 
call      qword ptr [7FF9B3887918]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+90]
 
test      rbp,rbp
 
je        near ptr M01_L20
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L21
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L05
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L22
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L05
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L05
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L04
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
je        short M01_L02
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L05
 
M01_L02
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FF9B30DCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L05
 
M01_L04
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L05
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L14
 
M01_L06
  
test      esi,esi
 
je        short M01_L08
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[rsi+r13]
 
cmp       ecx,[r8+8]
 
ja        near ptr M01_L17
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        near ptr M01_L15
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
je        near ptr M01_L18
 
M01_L07
  
add       r13d,esi
 
mov       [rbx+18],r13d
 
M01_L08
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        short M01_L13
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L09
  
test      rcx,rcx
 
je        short M01_L13
 
lea       rdx,[rcx+0C]
 
mov       r13d,[rcx+8]
 
test      r13d,r13d
 
je        short M01_L13
 
mov       r8,[rbx+8]
 
mov       r12d,[rbx+18]
 
lea       ecx,[r12+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L12
 
movsxd    rcx,r12d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r13d,2
 
jg        short M01_L16
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r13d,2
 
je        short M01_L11
 
M01_L10
  
add       r13d,r12d
 
mov       [rbx+18],r13d
 
jmp       short M01_L13
 
M01_L11
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L10
 
M01_L12
  
mov       rcx,rbx
 
mov       r8d,r13d
 
call      qword ptr [7FF9B30DCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L13
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L06
 
M01_L14
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L15
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L07
 
M01_L16
  
movsxd    r8,r13d
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L10
 
M01_L17
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FF9B30DCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M01_L08
 
M01_L18
  
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       near ptr M01_L07
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L09
 
M01_L20
  
mov       ecx,6
 
call      qword ptr [7FF9B303ED00]
 
int       3
 
M01_L21
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L22
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinCharComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       dword ptr [rsp+30],2C
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
lea       r8,[rsp+30]
 
mov       rcx,rsi
 
mov       rdx,7FF9B38B33B8
 
mov       r9d,1
 
call      qword ptr [7FF9B38A7D68]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+80]
 
test      rbp,rbp
 
je        near ptr M01_L20
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L21
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L05
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L22
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L05
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L05
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L04
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
je        short M01_L02
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L05
 
M01_L02
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L05
 
M01_L04
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L05
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L14
 
M01_L06
  
test      esi,esi
 
je        short M01_L08
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        near ptr M01_L17
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        near ptr M01_L15
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
je        near ptr M01_L18
 
M01_L07
  
mov       [rbx+18],r13d
 
M01_L08
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        short M01_L13
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L09
  
test      rcx,rcx
 
je        short M01_L13
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        short M01_L13
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       r13d,[rax+r8]
 
cmp       r13d,[rcx+8]
 
ja        short M01_L12
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L16
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
je        short M01_L11
 
M01_L10
  
mov       [rbx+18],r13d
 
jmp       short M01_L13
 
M01_L11
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L10
 
M01_L12
  
mov       rcx,rbx
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L13
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L06
 
M01_L14
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L15
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L07
 
M01_L16
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L10
 
M01_L17
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M01_L08
 
M01_L18
  
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       near ptr M01_L07
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L09
 
M01_L20
  
mov       ecx,6
 
call      qword ptr [7FF9B305ED00]
 
int       3
 
M01_L21
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L22
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinCharComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       dword ptr [rsp+30],2C
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
lea       r8,[rsp+30]
 
mov       rcx,rsi
 
mov       rdx,7FF9B38B30B0
 
mov       r9d,1
 
call      qword ptr [7FF9B38A75E8]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+80]
 
test      rbp,rbp
 
je        near ptr M01_L20
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L21
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L05
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L22
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L05
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L05
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L04
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
je        short M01_L02
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L05
 
M01_L02
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L05
 
M01_L04
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L05
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L18
 
M01_L06
  
test      esi,esi
 
je        short M01_L10
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        short M01_L09
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        short M01_L11
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
je        short M01_L08
 
M01_L07
  
mov       [rbx+18],r13d
 
jmp       short M01_L10
 
M01_L08
  
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L07
 
M01_L09
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L10
  
mov       eax,r15d
 
mov       rcx,[rbp+rax*8+10]
 
test      rcx,rcx
 
je        short M01_L13
 
jmp       short M01_L14
 
M01_L11
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L07
 
M01_L12
  
mov       rcx,rbx
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L13
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L06
 
jmp       short M01_L18
 
M01_L14
  
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L23
 
M01_L15
  
test      rcx,rcx
 
je        short M01_L13
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        short M01_L13
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       r13d,[rax+r8]
 
cmp       r13d,[rcx+8]
 
ja        short M01_L12
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L17
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
je        short M01_L19
 
M01_L16
  
mov       [rbx+18],r13d
 
jmp       short M01_L13
 
M01_L17
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L16
 
M01_L18
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L19
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L16
 
M01_L20
  
mov       ecx,6
 
call      qword ptr [7FF9B305ED00]
 
int       3
 
M01_L21
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L22
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L23
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L15
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinCharComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       dword ptr [rsp+30],2C
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
lea       r8,[rsp+30]
 
mov       rcx,rsi
 
mov       rdx,7FF9B38A6370
 
mov       r9d,1
 
call      qword ptr [7FF9B389D200]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+80]
 
test      rbp,rbp
 
je        near ptr M01_L20
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L21
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L05
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L22
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L05
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L05
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L04
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
je        short M01_L02
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L05
 
M01_L02
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L05
 
M01_L04
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L05
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L14
 
M01_L06
  
test      esi,esi
 
je        short M01_L08
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        near ptr M01_L17
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        near ptr M01_L15
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
je        near ptr M01_L18
 
M01_L07
  
mov       [rbx+18],r13d
 
M01_L08
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        short M01_L13
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L09
  
test      rcx,rcx
 
je        short M01_L13
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        short M01_L13
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       r13d,[rax+r8]
 
cmp       r13d,[rcx+8]
 
ja        short M01_L12
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L16
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
je        short M01_L11
 
M01_L10
  
mov       [rbx+18],r13d
 
jmp       short M01_L13
 
M01_L11
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L10
 
M01_L12
  
mov       rcx,rbx
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L13
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L06
 
M01_L14
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L15
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L07
 
M01_L16
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L10
 
M01_L17
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M01_L08
 
M01_L18
  
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       near ptr M01_L07
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L09
 
M01_L20
  
mov       ecx,6
 
call      qword ptr [7FF9B304ED00]
 
int       3
 
M01_L21
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L22
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinCharComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       dword ptr [rsp+30],2C
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
lea       r8,[rsp+30]
 
mov       rcx,rsi
 
mov       rdx,7FF9B38C6738
 
mov       r9d,1
 
call      qword ptr [7FF9B38BD200]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+80]
 
test      rbp,rbp
 
je        near ptr M01_L20
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L21
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L05
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L22
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L05
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L05
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L04
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
je        short M01_L02
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L05
 
M01_L02
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FF9B310CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L05
 
M01_L04
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L05
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L14
 
M01_L06
  
test      esi,esi
 
je        short M01_L08
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        near ptr M01_L17
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        near ptr M01_L15
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
je        near ptr M01_L18
 
M01_L07
  
mov       [rbx+18],r13d
 
M01_L08
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        short M01_L13
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L09
  
test      rcx,rcx
 
je        short M01_L13
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        short M01_L13
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       r13d,[rax+r8]
 
cmp       r13d,[rcx+8]
 
ja        short M01_L12
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L16
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
je        short M01_L11
 
M01_L10
  
mov       [rbx+18],r13d
 
jmp       short M01_L13
 
M01_L11
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L10
 
M01_L12
  
mov       rcx,rbx
 
call      qword ptr [7FF9B310CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L13
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L06
 
M01_L14
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L15
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L07
 
M01_L16
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L10
 
M01_L17
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FF9B310CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M01_L08
 
M01_L18
  
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       near ptr M01_L07
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L09
 
M01_L20
  
mov       ecx,6
 
call      qword ptr [7FF9B306ED00]
 
int       3
 
M01_L21
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L22
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinCharComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       dword ptr [rsp+30],2C
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
lea       r8,[rsp+30]
 
mov       rcx,rsi
 
mov       rdx,7FF9B38B6370
 
mov       r9d,1
 
call      qword ptr [7FF9B38AD200]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+80]
 
test      rbp,rbp
 
je        near ptr M01_L20
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L21
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L05
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L22
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L05
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L05
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L04
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
je        short M01_L02
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L05
 
M01_L02
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L05
 
M01_L04
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L05
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L14
 
M01_L06
  
test      esi,esi
 
je        short M01_L08
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        near ptr M01_L17
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        near ptr M01_L15
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
je        near ptr M01_L18
 
M01_L07
  
mov       [rbx+18],r13d
 
M01_L08
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        short M01_L13
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L09
  
test      rcx,rcx
 
je        short M01_L13
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        short M01_L13
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       r13d,[rax+r8]
 
cmp       r13d,[rcx+8]
 
ja        short M01_L12
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L16
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
je        short M01_L11
 
M01_L10
  
mov       [rbx+18],r13d
 
jmp       short M01_L13
 
M01_L11
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L10
 
M01_L12
  
mov       rcx,rbx
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L13
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L06
 
M01_L14
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L15
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L07
 
M01_L16
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L10
 
M01_L17
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M01_L08
 
M01_L18
  
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       near ptr M01_L07
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L09
 
M01_L20
  
mov       ecx,6
 
call      qword ptr [7FF9B305ED00]
 
int       3
 
M01_L21
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L22
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinCharComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       dword ptr [rsp+30],2C
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
lea       r8,[rsp+30]
 
mov       rcx,rsi
 
mov       rdx,7FF9B38B6738
 
mov       r9d,1
 
call      qword ptr [7FF9B38AD200]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+80]
 
test      rbp,rbp
 
je        near ptr M01_L20
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L21
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L05
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L22
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L05
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L05
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L04
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
je        short M01_L02
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L05
 
M01_L02
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L05
 
M01_L04
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L05
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L14
 
M01_L06
  
test      esi,esi
 
je        short M01_L08
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        near ptr M01_L17
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        near ptr M01_L15
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
je        near ptr M01_L18
 
M01_L07
  
mov       [rbx+18],r13d
 
M01_L08
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        short M01_L13
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L09
  
test      rcx,rcx
 
je        short M01_L13
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        short M01_L13
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       r13d,[rax+r8]
 
cmp       r13d,[rcx+8]
 
ja        short M01_L12
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L16
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
je        short M01_L11
 
M01_L10
  
mov       [rbx+18],r13d
 
jmp       short M01_L13
 
M01_L11
  
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L10
 
M01_L12
  
mov       rcx,rbx
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L13
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L06
 
M01_L14
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L15
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L07
 
M01_L16
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L10
 
M01_L17
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M01_L08
 
M01_L18
  
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       near ptr M01_L07
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L09
 
M01_L20
  
mov       ecx,6
 
call      qword ptr [7FF9B305ED00]
 
int       3
 
M01_L21
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L22
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinStringComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
mov       r8,22CC94D916C
 
mov       r9d,2
 
mov       rcx,rsi
 
mov       rdx,7FF9B38A30B0
 
call      qword ptr [7FF9B38975E8]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+90]
 
test      rbp,rbp
 
je        near ptr M01_L16
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L17
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L04
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L18
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L04
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L04
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L01
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M01_L02
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L02
 
M01_L01
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L02
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L04
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L15
 
M01_L05
  
test      esi,esi
 
je        short M01_L09
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[rsi+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L08
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        short M01_L06
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
jne       short M01_L07
 
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L07
 
M01_L06
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L07
  
add       r13d,esi
 
mov       [rbx+18],r13d
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        near ptr M01_L14
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L10
  
test      rcx,rcx
 
je        short M01_L14
 
lea       rdx,[rcx+0C]
 
mov       r13d,[rcx+8]
 
test      r13d,r13d
 
je        short M01_L14
 
mov       r8,[rbx+8]
 
mov       r12d,[rbx+18]
 
lea       ecx,[r12+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L13
 
movsxd    rcx,r12d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r13d,2
 
jg        short M01_L11
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r13d,2
 
jne       short M01_L12
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L12
 
M01_L11
  
movsxd    r8,r13d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L12
  
add       r13d,r12d
 
mov       [rbx+18],r13d
 
jmp       short M01_L14
 
M01_L13
  
mov       rcx,rbx
 
mov       r8d,r13d
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L14
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L05
 
M01_L15
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L16
  
mov       ecx,6
 
call      qword ptr [7FF9B304ED00]
 
int       3
 
M01_L17
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L18
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L10
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinStringComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
mov       r8,252E04D916C
 
mov       r9d,2
 
mov       rcx,rsi
 
mov       rdx,7FF9B38A30B0
 
call      qword ptr [7FF9B38975E8]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+90]
 
test      rbp,rbp
 
je        near ptr M01_L16
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L17
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L04
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L18
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L04
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L04
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L02
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L04
 
M01_L02
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L13
 
M01_L05
  
test      esi,esi
 
je        short M01_L07
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[rsi+r13]
 
cmp       ecx,[r8+8]
 
ja        near ptr M01_L14
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        near ptr M01_L10
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
jne       short M01_L06
 
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
M01_L06
  
add       r13d,esi
 
mov       [rbx+18],r13d
 
M01_L07
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        near ptr M01_L12
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L08
  
test      rcx,rcx
 
je        short M01_L12
 
lea       rdx,[rcx+0C]
 
mov       r13d,[rcx+8]
 
test      r13d,r13d
 
je        short M01_L12
 
mov       r8,[rbx+8]
 
mov       r12d,[rbx+18]
 
lea       ecx,[r12+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L11
 
movsxd    rcx,r12d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r13d,2
 
jg        short M01_L15
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r13d,2
 
jne       short M01_L09
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M01_L09
  
add       r13d,r12d
 
mov       [rbx+18],r13d
 
jmp       short M01_L12
 
M01_L10
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L06
 
M01_L11
  
mov       rcx,rbx
 
mov       r8d,r13d
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L12
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L05
 
M01_L13
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L14
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M01_L07
 
M01_L15
  
movsxd    r8,r13d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L09
 
M01_L16
  
mov       ecx,6
 
call      qword ptr [7FF9B304ED00]
 
int       3
 
M01_L17
  
mov       rax,rbx
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L18
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L08
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinStringComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
mov       r8,255619B916C
 
mov       r9d,2
 
mov       rcx,rsi
 
mov       rdx,7FF9B38A30B0
 
call      qword ptr [7FF9B38975E8]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+80]
 
test      rbp,rbp
 
je        near ptr M01_L16
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L17
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L04
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L18
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L04
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L04
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L01
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M01_L02
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L02
 
M01_L01
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L02
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L04
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L15
 
M01_L05
  
test      esi,esi
 
je        short M01_L09
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        short M01_L08
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        short M01_L06
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
jne       short M01_L07
 
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L07
 
M01_L06
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L07
  
mov       [rbx+18],r13d
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        short M01_L14
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L10
  
test      rcx,rcx
 
je        short M01_L14
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        short M01_L14
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       r13d,[rax+r8]
 
cmp       r13d,[rcx+8]
 
ja        short M01_L13
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L11
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L12
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L12
 
M01_L11
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L12
  
mov       [rbx+18],r13d
 
jmp       short M01_L14
 
M01_L13
  
mov       rcx,rbx
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L14
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L05
 
M01_L15
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L16
  
mov       ecx,6
 
call      qword ptr [7FF9B304ED00]
 
int       3
 
M01_L17
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L18
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L10
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinStringComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
mov       r8,20001FB916C
 
mov       r9d,2
 
mov       rcx,rsi
 
mov       rdx,7FF9B38A33B8
 
call      qword ptr [7FF9B3897D68]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+80]
 
test      rbp,rbp
 
je        near ptr M01_L16
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L17
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L04
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L18
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L04
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L04
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L01
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M01_L02
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L02
 
M01_L01
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L02
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L04
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L15
 
M01_L05
  
test      esi,esi
 
je        short M01_L09
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        short M01_L08
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        short M01_L06
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
jne       short M01_L07
 
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L07
 
M01_L06
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L07
  
mov       [rbx+18],r13d
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        short M01_L14
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L10
  
test      rcx,rcx
 
je        short M01_L14
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        short M01_L14
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       r13d,[rax+r8]
 
cmp       r13d,[rcx+8]
 
ja        short M01_L13
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L11
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L12
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L12
 
M01_L11
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L12
  
mov       [rbx+18],r13d
 
jmp       short M01_L14
 
M01_L13
  
mov       rcx,rbx
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L14
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L05
 
M01_L15
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L16
  
mov       ecx,6
 
call      qword ptr [7FF9B304ED00]
 
int       3
 
M01_L17
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L18
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L10
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinStringComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
mov       r8,1F30B7A916C
 
mov       r9d,2
 
mov       rcx,rsi
 
mov       rdx,7FF9B38C6738
 
call      qword ptr [7FF9B38BD200]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+80]
 
test      rbp,rbp
 
je        near ptr M01_L16
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L17
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L06
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L18
 
M01_L00
  
test      rcx,rcx
 
je        near ptr M01_L06
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        near ptr M01_L06
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        near ptr M01_L05
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L02
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L06
 
M01_L02
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L03
  
test      rcx,rcx
 
je        near ptr M01_L11
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        near ptr M01_L11
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       r13d,[rax+r8]
 
cmp       r13d,[rcx+8]
 
ja        near ptr M01_L10
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        near ptr M01_L13
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L04
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M01_L04
  
mov       [rbx+18],r13d
 
jmp       near ptr M01_L11
 
M01_L05
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FF9B310CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L15
 
M01_L07
  
test      esi,esi
 
je        short M01_L09
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        near ptr M01_L14
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        short M01_L12
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
jne       short M01_L08
 
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
M01_L08
  
mov       [rbx+18],r13d
 
M01_L09
  
mov       eax,r15d
 
mov       rcx,[rbp+rax*8+10]
 
test      rcx,rcx
 
je        short M01_L11
 
mov       rax,offset MT_System.String
 
cmp       [rcx],rax
 
jne       near ptr M01_L19
 
jmp       near ptr M01_L03
 
M01_L10
  
mov       rcx,rbx
 
call      qword ptr [7FF9B310CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L11
  
inc       r15d
 
cmp       r14d,r15d
 
jg        short M01_L07
 
jmp       short M01_L15
 
M01_L12
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L08
 
M01_L13
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L04
 
M01_L14
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FF9B310CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L09
 
M01_L15
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L16
  
mov       ecx,6
 
call      qword ptr [7FF9B306ED00]
 
int       3
 
M01_L17
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L18
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L03
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinStringComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
mov       r8,1999D69916C
 
mov       r9d,2
 
mov       rcx,rsi
 
mov       rdx,7FF9B38C6738
 
call      qword ptr [7FF9B38BD200]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+80]
 
test      rbp,rbp
 
je        near ptr M01_L16
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L17
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L04
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L18
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L04
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L04
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L01
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M01_L02
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L02
 
M01_L01
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L02
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L04
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FF9B310CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L15
 
M01_L05
  
test      esi,esi
 
je        short M01_L09
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        short M01_L08
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        short M01_L06
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
jne       short M01_L07
 
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L07
 
M01_L06
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L07
  
mov       [rbx+18],r13d
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FF9B310CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        short M01_L14
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L10
  
test      rcx,rcx
 
je        short M01_L14
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        short M01_L14
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       r13d,[rax+r8]
 
cmp       r13d,[rcx+8]
 
ja        short M01_L13
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L11
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L12
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L12
 
M01_L11
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L12
  
mov       [rbx+18],r13d
 
jmp       short M01_L14
 
M01_L13
  
mov       rcx,rbx
 
call      qword ptr [7FF9B310CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L14
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L05
 
M01_L15
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L16
  
mov       ecx,6
 
call      qword ptr [7FF9B306ED00]
 
int       3
 
M01_L17
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L18
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L10
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinStringComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
mov       r8,263813A916C
 
mov       r9d,2
 
mov       rcx,rsi
 
mov       rdx,7FF9B38A6738
 
call      qword ptr [7FF9B389D200]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+80]
 
test      rbp,rbp
 
je        near ptr M01_L16
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L17
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L04
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L18
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L04
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L04
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L02
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M01_L01
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L04
 
M01_L02
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L15
 
M01_L05
  
test      esi,esi
 
je        short M01_L07
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        near ptr M01_L13
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        near ptr M01_L10
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
jne       short M01_L06
 
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
M01_L06
  
mov       [rbx+18],r13d
 
M01_L07
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        near ptr M01_L12
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L08
  
test      rcx,rcx
 
je        short M01_L12
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        short M01_L12
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       r13d,[rax+r8]
 
cmp       r13d,[rcx+8]
 
ja        short M01_L11
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L14
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L09
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M01_L09
  
mov       [rbx+18],r13d
 
jmp       short M01_L12
 
M01_L10
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       near ptr M01_L06
 
M01_L11
  
mov       rcx,rbx
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L12
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L05
 
jmp       short M01_L15
 
M01_L13
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       near ptr M01_L07
 
M01_L14
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M01_L09
 
M01_L15
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L16
  
mov       ecx,6
 
call      qword ptr [7FF9B304ED00]
 
int       3
 
M01_L17
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L18
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L08
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.JoinStringComparison()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       r8,[rbx+290]
 
mov       [rsp+20],r8
 
mov       r8,21B6483916C
 
mov       r9d,2
 
mov       rcx,rsi
 
mov       rdx,7FF9B38A6370
 
call      qword ptr [7FF9B389D200]; System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
 
mov       [rsp+30],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+30]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
System.Text.StringBuilder.AppendJoinCore[[System.__Canon, System.Private.CoreLib]](Char ByRef, Int32, System.__Canon[])
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rdi,r8
 
mov       esi,r9d
 
mov       rbp,[rsp+80]
 
test      rbp,rbp
 
je        near ptr M01_L16
 
mov       r14d,[rbp+8]
 
test      r14d,r14d
 
je        near ptr M01_L17
 
mov       rcx,[rbp+10]
 
test      rcx,rcx
 
je        near ptr M01_L04
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L18
 
M01_L00
  
test      rcx,rcx
 
je        short M01_L04
 
lea       rdx,[rcx+0C]
 
mov       r15d,[rcx+8]
 
test      r15d,r15d
 
je        short M01_L04
 
mov       r8,[rbx+8]
 
mov       r13d,[rbx+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M01_L03
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M01_L01
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M01_L02
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L02
 
M01_L01
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L02
  
add       r15d,r13d
 
mov       [rbx+18],r15d
 
jmp       short M01_L04
 
M01_L03
  
mov       rcx,rbx
 
mov       r8d,r15d
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
mov       r15d,1
 
cmp       r14d,1
 
jle       near ptr M01_L15
 
M01_L05
  
test      esi,esi
 
je        short M01_L09
 
mov       r8,[rbx+8]
 
mov       ecx,[rbx+18]
 
lea       r13d,[rcx+rsi]
 
cmp       r13d,[r8+8]
 
ja        short M01_L08
 
movsxd    rcx,ecx
 
lea       rcx,[r8+rcx*2+10]
 
cmp       esi,2
 
jg        short M01_L06
 
movzx     r8d,word ptr [rdi]
 
mov       [rcx],r8w
 
cmp       esi,2
 
jne       short M01_L07
 
movzx     r8d,word ptr [rdi+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L07
 
M01_L06
  
movsxd    r8,esi
 
add       r8,r8
 
mov       rdx,rdi
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L07
  
mov       [rbx+18],r13d
 
jmp       short M01_L09
 
M01_L08
  
mov       rcx,rbx
 
mov       rdx,rdi
 
mov       r8d,esi
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L09
  
mov       r8d,r15d
 
mov       rcx,[rbp+r8*8+10]
 
test      rcx,rcx
 
je        short M01_L14
 
mov       r8,offset MT_System.String
 
cmp       [rcx],r8
 
jne       near ptr M01_L19
 
M01_L10
  
test      rcx,rcx
 
je        short M01_L14
 
lea       rdx,[rcx+0C]
 
mov       r8d,[rcx+8]
 
test      r8d,r8d
 
je        short M01_L14
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       r13d,[rax+r8]
 
cmp       r13d,[rcx+8]
 
ja        short M01_L13
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jg        short M01_L11
 
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L12
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L12
 
M01_L11
  
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L12
  
mov       [rbx+18],r13d
 
jmp       short M01_L14
 
M01_L13
  
mov       rcx,rbx
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L14
  
inc       r15d
 
cmp       r14d,r15d
 
jg        near ptr M01_L05
 
M01_L15
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L16
  
mov       ecx,6
 
call      qword ptr [7FF9B304ED00]
 
int       3
 
M01_L17
  
mov       rax,rbx
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M01_L18
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L00
 
M01_L19
  
mov       rax,[rcx]
 
mov       rax,[rax+40]
 
call      qword ptr [rax+8]
 
mov       rcx,rax
 
jmp       near ptr M01_L10
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       r8,[rbx+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       r8,[rbx+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M00_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M00_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30DE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M01_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M01_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M01_L03
 
test      r8b,18
 
jne       short M01_L01
 
test      r8b,4
 
je        short M01_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M01_L00
  
ret
 
M01_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M01_L00
 
M01_L02
  
test      r8,r8
 
je        short M01_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M01_L06
 
jmp       short M01_L00
 
M01_L03
  
cmp       r8,40
 
ja        short M01_L07
 
M01_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M01_L11
 
M01_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M01_L00
 
M01_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M01_L00
 
M01_L07
  
cmp       r8,800
 
ja        short M01_L10
 
mov       r9,r8
 
shr       r9,6
 
M01_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M01_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M01_L04
 
jmp       short M01_L05
 
M01_L09
  
cmp       rcx,rdx
 
je        near ptr M01_L00
 
M01_L10
  
jmp       qword ptr [7FF9B2F05B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M01_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M01_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M02_L03
 
cmp       r8d,edi
 
jl        near ptr M02_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M02_L01
 
test      r8,r8
 
je        near ptr M02_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M02_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M02_L00
  
cmp       ebp,r10d
 
ja        near ptr M02_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M02_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FF9B30ECB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M02_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M02_L07
 
M02_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M02_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2D04000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B339F6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F0D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M02_L04
  
test      eax,eax
 
jne       short M02_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M02_L00
 
M02_L05
  
call      qword ptr [7FF9B304E9D0]
 
int       3
 
M02_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M02_L02
 
M02_L07
  
call      qword ptr [7FF9B304E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      00007FF9B2E51E60
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2D04000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B339F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F0D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,30A54F60008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       r8,[rbx+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       r8,[rbx+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M00_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M00_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30EE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M01_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M01_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M01_L03
 
test      r8b,18
 
jne       short M01_L01
 
test      r8b,4
 
je        short M01_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M01_L00
  
ret
 
M01_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M01_L00
 
M01_L02
  
test      r8,r8
 
je        short M01_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M01_L06
 
jmp       short M01_L00
 
M01_L03
  
cmp       r8,40
 
ja        short M01_L07
 
M01_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M01_L11
 
M01_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M01_L00
 
M01_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M01_L00
 
M01_L07
  
cmp       r8,800
 
ja        short M01_L10
 
mov       r9,r8
 
shr       r9,6
 
M01_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M01_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M01_L04
 
jmp       short M01_L05
 
M01_L09
  
cmp       rcx,rdx
 
je        near ptr M01_L00
 
M01_L10
  
jmp       qword ptr [7FF9B2F15B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M01_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M01_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M02_L03
 
cmp       r8d,edi
 
jl        near ptr M02_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M02_L01
 
test      r8,r8
 
je        near ptr M02_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M02_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M02_L00
  
cmp       ebp,r10d
 
ja        near ptr M02_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M02_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FF9B30FCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M02_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M02_L07
 
M02_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M02_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33AF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F1D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M02_L04
  
test      eax,eax
 
jne       short M02_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M02_L00
 
M02_L05
  
call      qword ptr [7FF9B305E9D0]
 
int       3
 
M02_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M02_L02
 
M02_L07
  
call      qword ptr [7FF9B305E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      00007FF9B2E61E60
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33AF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F1D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,305C21C0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       r8,[rbx+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       r8,[rbx+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M00_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M00_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30EE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M01_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M01_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M01_L03
 
test      r8b,18
 
jne       short M01_L01
 
test      r8b,4
 
je        short M01_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M01_L00
  
ret
 
M01_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M01_L00
 
M01_L02
  
test      r8,r8
 
je        short M01_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M01_L06
 
jmp       short M01_L00
 
M01_L03
  
cmp       r8,40
 
ja        short M01_L07
 
M01_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M01_L11
 
M01_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M01_L00
 
M01_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M01_L00
 
M01_L07
  
cmp       r8,800
 
ja        short M01_L10
 
mov       r9,r8
 
shr       r9,6
 
M01_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M01_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M01_L04
 
jmp       short M01_L05
 
M01_L09
  
cmp       rcx,rdx
 
je        near ptr M01_L00
 
M01_L10
  
jmp       qword ptr [7FF9B2F15B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M01_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M01_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M02_L03
 
cmp       r8d,edi
 
jl        near ptr M02_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M02_L01
 
test      r8,r8
 
je        near ptr M02_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M02_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M02_L00
  
cmp       ebp,r10d
 
ja        near ptr M02_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M02_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FF9B30FCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M02_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M02_L07
 
M02_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M02_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33AF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F1D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M02_L04
  
test      eax,eax
 
jne       short M02_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M02_L00
 
M02_L05
  
call      qword ptr [7FF9B305E9D0]
 
int       3
 
M02_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M02_L02
 
M02_L07
  
call      qword ptr [7FF9B305E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      00007FF9B2E61E60
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33AF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F1D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,252D87E0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       r8,[rbx+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       r8,[rbx+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M00_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M00_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30EE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M01_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M01_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M01_L03
 
test      r8b,18
 
jne       short M01_L01
 
test      r8b,4
 
je        short M01_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M01_L00
  
ret
 
M01_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M01_L00
 
M01_L02
  
test      r8,r8
 
je        short M01_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M01_L06
 
jmp       short M01_L00
 
M01_L03
  
cmp       r8,40
 
ja        short M01_L07
 
M01_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M01_L11
 
M01_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M01_L00
 
M01_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M01_L00
 
M01_L07
  
cmp       r8,800
 
ja        short M01_L10
 
mov       r9,r8
 
shr       r9,6
 
M01_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M01_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M01_L04
 
jmp       short M01_L05
 
M01_L09
  
cmp       rcx,rdx
 
je        near ptr M01_L00
 
M01_L10
  
jmp       qword ptr [7FF9B2F15B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M01_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M01_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M02_L03
 
cmp       r8d,edi
 
jl        near ptr M02_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M02_L01
 
test      r8,r8
 
je        near ptr M02_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M02_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M02_L00
  
cmp       ebp,r10d
 
ja        near ptr M02_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M02_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FF9B30FCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M02_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M02_L07
 
M02_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M02_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33AF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F1D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M02_L04
  
test      eax,eax
 
jne       short M02_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M02_L00
 
M02_L05
  
call      qword ptr [7FF9B305E9D0]
 
int       3
 
M02_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M02_L02
 
M02_L07
  
call      qword ptr [7FF9B305E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      00007FF9B2E61E60
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33AF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F1D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,2576DBE0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       r8,[rbx+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       r8,[rbx+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M00_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M00_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FF9B315C2E8]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B3174C88]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M01_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M01_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M01_L03
 
test      r8b,18
 
jne       short M01_L01
 
test      r8b,4
 
je        short M01_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M01_L00
  
ret
 
M01_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M01_L00
 
M01_L02
  
test      r8,r8
 
je        short M01_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M01_L06
 
jmp       short M01_L00
 
M01_L03
  
cmp       r8,40
 
ja        short M01_L07
 
M01_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M01_L11
 
M01_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M01_L00
 
M01_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M01_L00
 
M01_L07
  
cmp       r8,800
 
ja        short M01_L10
 
mov       r9,r8
 
shr       r9,6
 
M01_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M01_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M01_L04
 
jmp       short M01_L05
 
M01_L09
  
cmp       rcx,rdx
 
je        near ptr M01_L00
 
M01_L10
  
jmp       qword ptr [7FF9B2F15B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M01_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M01_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M02_L03
 
cmp       r8d,edi
 
jl        near ptr M02_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M02_L01
 
test      r8,r8
 
je        near ptr M02_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M02_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M02_L00
  
cmp       ebp,r10d
 
ja        near ptr M02_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M02_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FF9B315C3A8]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M02_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M02_L07
 
M02_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M02_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33AF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F1D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M02_L04
  
test      eax,eax
 
jne       short M02_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M02_L00
 
M02_L05
  
call      qword ptr [7FF9B305E9D0]
 
int       3
 
M02_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M02_L02
 
M02_L07
  
call      qword ptr [7FF9B305E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      00007FF9B2E61E60
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33AF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F1D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,28037BE0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       r8,[rbx+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       r8,[rbx+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M00_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M00_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30DCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30CE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M01_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M01_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M01_L02
 
test      r8b,18
 
je        short M01_L01
 
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
M01_L00
  
ret
 
M01_L01
  
test      r8b,4
 
je        short M01_L05
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
jmp       short M01_L00
 
M01_L02
  
cmp       r8,40
 
ja        short M01_L07
 
M01_L03
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M01_L06
 
M01_L04
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M01_L00
 
M01_L05
  
test      r8,r8
 
je        short M01_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
je        short M01_L00
 
movsx     rcx,word ptr [rax-2]
 
mov       [r10-2],cx
 
jmp       short M01_L00
 
M01_L06
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M01_L04
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M01_L04
 
M01_L07
  
cmp       r8,800
 
ja        short M01_L10
 
mov       r9,r8
 
shr       r9,6
 
M01_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M01_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        near ptr M01_L03
 
jmp       near ptr M01_L04
 
M01_L09
  
cmp       rcx,rdx
 
je        near ptr M01_L00
 
M01_L10
  
jmp       qword ptr [7FF9B2EF5B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M02_L03
 
cmp       r8d,edi
 
jl        near ptr M02_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M02_L01
 
test      r8,r8
 
je        near ptr M02_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M02_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M02_L00
  
cmp       ebp,r10d
 
ja        near ptr M02_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M02_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FF9B30DCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M02_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M02_L07
 
M02_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M02_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2CF4000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B338F6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2EFD470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M02_L04
  
test      eax,eax
 
jne       short M02_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M02_L00
 
M02_L05
  
call      qword ptr [7FF9B303E9D0]
 
int       3
 
M02_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M02_L02
 
M02_L07
  
call      qword ptr [7FF9B303E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      00007FF9B2E41E60
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2CF4000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B338F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2EFD470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,2E615A70008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       r8,[rbx+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       r8,[rbx+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M00_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M00_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FF9B310CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30FE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M01_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M01_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M01_L03
 
test      r8b,18
 
jne       short M01_L01
 
test      r8b,4
 
je        short M01_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M01_L00
  
ret
 
M01_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M01_L00
 
M01_L02
  
test      r8,r8
 
je        short M01_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M01_L06
 
jmp       short M01_L00
 
M01_L03
  
cmp       r8,40
 
ja        short M01_L07
 
M01_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M01_L11
 
M01_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M01_L00
 
M01_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M01_L00
 
M01_L07
  
cmp       r8,800
 
ja        short M01_L10
 
mov       r9,r8
 
shr       r9,6
 
M01_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M01_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M01_L04
 
jmp       short M01_L05
 
M01_L09
  
cmp       rcx,rdx
 
je        near ptr M01_L00
 
M01_L10
  
jmp       qword ptr [7FF9B2F25B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M01_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M01_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M02_L03
 
cmp       r8d,edi
 
jl        near ptr M02_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M02_L01
 
test      r8,r8
 
je        near ptr M02_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M02_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M02_L00
  
cmp       ebp,r10d
 
ja        near ptr M02_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M02_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FF9B310CB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M02_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M02_L07
 
M02_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M02_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2D24000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33BF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F2D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M02_L04
  
test      eax,eax
 
jne       short M02_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M02_L00
 
M02_L05
  
call      qword ptr [7FF9B306E9D0]
 
int       3
 
M02_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M02_L02
 
M02_L07
  
call      qword ptr [7FF9B306E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      00007FF9B2E71E60
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2D24000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33BF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F2D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,1E889520008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionComparison()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
xor       eax,eax
 
mov       [rsp+20],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       edi,edi
 
mov       r8,[rbx+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M00_L05
 
M00_L00
  
mov       r8,[rbx+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M00_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M00_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M00_L04
 
mov       rcx,[rsi+8]
 
mov       eax,[rsi+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M00_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M00_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L01
  
mov       [rsi+18],ebp
 
jmp       short M00_L04
 
M00_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M00_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L01
 
M00_L03
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30DCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
inc       edi
 
mov       rcx,[rbx+290]
 
cmp       [rcx+8],edi
 
jg        near ptr M00_L00
 
M00_L05
  
mov       rcx,rsi
 
call      qword ptr [7FF9B30CE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+20],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+20]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M01_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M01_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M01_L03
 
test      r8b,18
 
jne       short M01_L01
 
test      r8b,4
 
je        short M01_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M01_L00
  
ret
 
M01_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M01_L00
 
M01_L02
  
test      r8,r8
 
je        short M01_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M01_L06
 
jmp       short M01_L00
 
M01_L03
  
cmp       r8,40
 
ja        short M01_L07
 
M01_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M01_L11
 
M01_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M01_L00
 
M01_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M01_L00
 
M01_L07
  
cmp       r8,800
 
ja        short M01_L10
 
mov       r9,r8
 
shr       r9,6
 
M01_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M01_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M01_L04
 
jmp       short M01_L05
 
M01_L09
  
cmp       rcx,rdx
 
je        near ptr M01_L00
 
M01_L10
  
jmp       qword ptr [7FF9B2EF5B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M01_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M01_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M02_L03
 
cmp       r8d,edi
 
jl        near ptr M02_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M02_L01
 
test      r8,r8
 
je        near ptr M02_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M02_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M02_L00
  
cmp       ebp,r10d
 
ja        near ptr M02_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M02_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FF9B30DCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M02_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M02_L07
 
M02_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M02_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2CF4000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B338F6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2EFD470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M02_L04
  
test      eax,eax
 
jne       short M02_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M02_L00
 
M02_L05
  
call      qword ptr [7FF9B303E9D0]
 
int       3
 
M02_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M02_L02
 
M02_L07
  
call      qword ptr [7FF9B303E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M03_L03
 
call      00007FF9B2E41E60
 
mov       rsi,rax
 
M03_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M03_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M03_L02
 
cmp       [rdx+8],r8d
 
jb        short M03_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M03_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M03_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2CF4000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B338F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2EFD470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L03
  
mov       rax,2AEFEE00008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionStringBuilderPool()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,1D01C4061B0
 
mov       rsi,[rcx]
 
mov       rcx,rsi
 
call      qword ptr [7FF9B35DE420]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
 
mov       rdi,rax
 
mov       rcx,offset MT_System.Action
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rbp+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
mov       [rbp+18],rcx
 
mov       [rsp+30],rbp
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FF9B38A7E10]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       rbp,rax
 
mov       rcx,rsi
 
mov       rdx,rdi
 
call      qword ptr [7FF9B35CEE20]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
 
mov       [rsp+28],rbp
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L00
  
call      qword ptr [7FF9B2E641F8]
 
int       3
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rcx,[rbx+20]
 
mov       [rsp+20],rcx
 
cmp       qword ptr [rsp+20],0
 
je        short M01_L01
 
lea       rcx,[rbx+20]
 
mov       r8,[rbx]
 
mov       r8,[r8+30]
 
mov       r8,[r8+8]
 
cmp       qword ptr [r8+8],30
 
jle       short M01_L00
 
M01_L00
  
mov       r8,[rsp+20]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rsp+20]
 
jne       short M01_L01
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L01
  
mov       rcx,[rbx+18]
 
lea       rdx,[rsp+20]
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35CF390]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L02
 
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L02
  
mov       rax,[rbx+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
nop
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L05
 
M02_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M02_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M02_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L04
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M02_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L01
  
mov       [rbx+18],ebp
 
jmp       short M02_L04
 
M02_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L01
 
M02_L03
  
mov       rcx,rbx
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M02_L04
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        near ptr M02_L00
 
M02_L05
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M02_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M03_L10
 
mov       rcx,1D01C406B60
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M03_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M03_L11
 
M03_L00
  
mov       rdi,[rbp-28]
 
M03_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FF9B30FC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M03_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M03_L09
 
M03_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M03_L04
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M03_L07
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M03_L07
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M03_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M03_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L03
  
mov       [rdi+18],r14d
 
jmp       short M03_L07
 
M03_L04
  
call      CORINFO_HELP_RNGCHKFAIL
 
M03_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M03_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M03_L03
 
M03_L06
  
mov       rcx,rdi
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M03_L07
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        near ptr M03_L02
 
jmp       short M03_L09
 
M03_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M03_L09
  
mov       rcx,rdi
 
call      qword ptr [7FF9B30EE778]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M03_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L10
  
mov       rax,210AE0F0008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35CF390]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M03_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M03_L00
 
M03_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M03_L01
 
M03_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,1D01C406B60
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M03_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M03_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FF9B30FC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M03_L15
 
M03_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M03_L18
 
M03_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M03_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M03_L18
 
M03_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M03_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35CF360]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M03_L18
 
M03_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M03_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rdi+18],rcx
 
jne       short M04_L03
 
mov       rcx,[rsi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rsi+1C]
 
mov       rdx,[rdi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M04_L04
 
mov       rcx,rsi
 
xor       edx,edx
 
call      qword ptr [7FF9B30FC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
M04_L00
  
cmp       qword ptr [rbx+20],0
 
jne       short M04_L05
 
lea       rcx,[rbx+20]
 
mov       rdx,[rbx]
 
mov       rdx,[rdx+30]
 
mov       rdx,[rdx+8]
 
cmp       qword ptr [rdx+8],30
 
jle       short M04_L01
 
M04_L01
  
mov       rdx,rsi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
jne       short M04_L05
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L02
  
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L03
  
mov       rdx,rsi
 
mov       rcx,[rdi+8]
 
call      qword ptr [rdi+18]
 
test      eax,eax
 
jne       short M04_L00
 
M04_L04
  
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L05
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M04_L02
 
mov       rcx,[rbx+18]
 
mov       rdx,rsi
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35CF360]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionStringBuilderPool()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,1B5DA0081A8
 
mov       rsi,[rcx]
 
mov       rcx,rsi
 
call      qword ptr [7FF9B35EE578]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
 
mov       rdi,rax
 
mov       rcx,offset MT_System.Action
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rbp+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
mov       [rbp+18],rcx
 
mov       [rsp+30],rbp
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FF9B38B7690]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       rbp,rax
 
mov       rcx,rsi
 
mov       rdx,rdi
 
call      qword ptr [7FF9B35DE9B8]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
 
mov       [rsp+28],rbp
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L00
  
call      qword ptr [7FF9B2E741F8]
 
int       3
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rcx,[rbx+20]
 
mov       [rsp+20],rcx
 
cmp       qword ptr [rsp+20],0
 
je        short M01_L01
 
lea       rcx,[rbx+20]
 
mov       r8,[rbx]
 
mov       r8,[r8+30]
 
mov       r8,[r8+8]
 
cmp       qword ptr [r8+8],30
 
jle       short M01_L00
 
M01_L00
  
mov       r8,[rsp+20]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rsp+20]
 
jne       short M01_L01
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L01
  
mov       rcx,[rbx+18]
 
lea       rdx,[rsp+20]
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35DEF28]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L02
 
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L02
  
mov       rax,[rbx+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
nop
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       short M02_L03
 
M02_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M02_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M02_L02
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L02
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M02_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L01
  
mov       [rbx+18],ebp
 
M02_L02
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        short M02_L00
 
M02_L03
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M02_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L01
 
M02_L05
  
mov       rcx,rbx
 
call      qword ptr [7FF9B310CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M02_L02
 
M02_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M03_L10
 
mov       rcx,1B5DA008B58
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M03_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M03_L11
 
M03_L00
  
mov       rdi,[rbp-28]
 
M03_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FF9B310C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M03_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M03_L09
 
M03_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M03_L04
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M03_L07
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M03_L07
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M03_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M03_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L03
  
mov       [rdi+18],r14d
 
jmp       short M03_L07
 
M03_L04
  
call      CORINFO_HELP_RNGCHKFAIL
 
M03_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M03_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M03_L03
 
M03_L06
  
mov       rcx,rdi
 
call      qword ptr [7FF9B310CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M03_L07
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        near ptr M03_L02
 
jmp       short M03_L09
 
M03_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M03_L09
  
mov       rcx,rdi
 
call      qword ptr [7FF9B30FE778]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M03_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L10
  
mov       rax,1F66C0A0008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35DEF28]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M03_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M03_L00
 
M03_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M03_L01
 
M03_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,1B5DA008B58
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M03_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M03_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FF9B310C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M03_L15
 
M03_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M03_L18
 
M03_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M03_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M03_L18
 
M03_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M03_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35DEEF8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M03_L18
 
M03_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M03_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rdi+18],rcx
 
jne       short M04_L03
 
mov       rcx,[rsi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rsi+1C]
 
mov       rdx,[rdi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M04_L04
 
mov       rcx,rsi
 
xor       edx,edx
 
call      qword ptr [7FF9B310C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
M04_L00
  
cmp       qword ptr [rbx+20],0
 
jne       short M04_L05
 
lea       rcx,[rbx+20]
 
mov       rdx,[rbx]
 
mov       rdx,[rdx+30]
 
mov       rdx,[rdx+8]
 
cmp       qword ptr [rdx+8],30
 
jle       short M04_L01
 
M04_L01
  
mov       rdx,rsi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
jne       short M04_L05
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L02
  
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L03
  
mov       rdx,rsi
 
mov       rcx,[rdi+8]
 
call      qword ptr [rdi+18]
 
test      eax,eax
 
jne       short M04_L00
 
M04_L04
  
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L05
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M04_L02
 
mov       rcx,[rbx+18]
 
mov       rdx,rsi
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35DEEF8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionStringBuilderPool()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,2A0970081A8
 
mov       rsi,[rcx]
 
mov       rcx,rsi
 
call      qword ptr [7FF9B35EE420]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
 
mov       rdi,rax
 
mov       rcx,offset MT_System.Action
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rbp+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
mov       [rbp+18],rcx
 
mov       [rsp+30],rbp
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FF9B38B7E10]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       rbp,rax
 
mov       rcx,rsi
 
mov       rdx,rdi
 
call      qword ptr [7FF9B35DED60]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
 
mov       [rsp+28],rbp
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L00
  
call      qword ptr [7FF9B2E741F8]
 
int       3
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rcx,[rbx+20]
 
mov       [rsp+20],rcx
 
cmp       qword ptr [rsp+20],0
 
je        short M01_L01
 
lea       rcx,[rbx+20]
 
mov       r8,[rbx]
 
mov       r8,[r8+30]
 
mov       r8,[r8+8]
 
cmp       qword ptr [r8+8],30
 
jle       short M01_L00
 
M01_L00
  
mov       r8,[rsp+20]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rsp+20]
 
jne       short M01_L01
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L01
  
mov       rcx,[rbx+18]
 
lea       rdx,[rsp+20]
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35DF2D0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L02
 
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L02
  
mov       rax,[rbx+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
nop
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L05
 
M02_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M02_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M02_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L04
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M02_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L01
  
mov       [rbx+18],ebp
 
jmp       short M02_L04
 
M02_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L01
 
M02_L03
  
mov       rcx,rbx
 
call      qword ptr [7FF9B310CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M02_L04
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        near ptr M02_L00
 
M02_L05
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M02_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M03_L10
 
mov       rcx,2A097008B58
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M03_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M03_L11
 
M03_L00
  
mov       rdi,[rbp-28]
 
M03_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FF9B310C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M03_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M03_L09
 
M03_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M03_L05
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M03_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M03_L04
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M03_L07
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M03_L06
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L03
  
mov       [rdi+18],r14d
 
M03_L04
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        short M03_L02
 
jmp       short M03_L09
 
M03_L05
  
call      CORINFO_HELP_RNGCHKFAIL
 
M03_L06
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M03_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M03_L03
 
M03_L07
  
mov       rcx,rdi
 
call      qword ptr [7FF9B310CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M03_L04
 
M03_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M03_L09
  
mov       rcx,rdi
 
call      qword ptr [7FF9B30FE778]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M03_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L10
  
mov       rax,2E129050008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35DF2D0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M03_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M03_L00
 
M03_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M03_L01
 
M03_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,2A097008B58
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M03_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M03_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FF9B310C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M03_L15
 
M03_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M03_L18
 
M03_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M03_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M03_L18
 
M03_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M03_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35DF2A0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M03_L18
 
M03_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M03_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rdi+18],rcx
 
jne       short M04_L03
 
mov       rcx,[rsi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rsi+1C]
 
mov       rdx,[rdi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M04_L04
 
mov       rcx,rsi
 
xor       edx,edx
 
call      qword ptr [7FF9B310C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
M04_L00
  
cmp       qword ptr [rbx+20],0
 
jne       short M04_L05
 
lea       rcx,[rbx+20]
 
mov       rdx,[rbx]
 
mov       rdx,[rdx+30]
 
mov       rdx,[rdx+8]
 
cmp       qword ptr [rdx+8],30
 
jle       short M04_L01
 
M04_L01
  
mov       rdx,rsi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
jne       short M04_L05
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L02
  
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L03
  
mov       rdx,rsi
 
mov       rcx,[rdi+8]
 
call      qword ptr [rdi+18]
 
test      eax,eax
 
jne       short M04_L00
 
M04_L04
  
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L05
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M04_L02
 
mov       rcx,[rbx+18]
 
mov       rdx,rsi
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35DF2A0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionStringBuilderPool()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,1653BC081A8
 
mov       rsi,[rcx]
 
mov       rcx,rsi
 
call      qword ptr [7FF9B35CE578]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
 
mov       rdi,rax
 
mov       rcx,offset MT_System.Action
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rbp+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
mov       [rbp+18],rcx
 
mov       [rsp+30],rbp
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FF9B3897E10]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       rbp,rax
 
mov       rcx,rsi
 
mov       rdx,rdi
 
call      qword ptr [7FF9B35BEA30]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
 
mov       [rsp+28],rbp
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L00
  
call      qword ptr [7FF9B2E541F8]
 
int       3
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rcx,[rbx+20]
 
mov       [rsp+20],rcx
 
cmp       qword ptr [rsp+20],0
 
je        short M01_L01
 
lea       rcx,[rbx+20]
 
mov       r8,[rbx]
 
mov       r8,[r8+30]
 
mov       r8,[r8+8]
 
cmp       qword ptr [r8+8],30
 
jle       short M01_L00
 
M01_L00
  
mov       r8,[rsp+20]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rsp+20]
 
jne       short M01_L01
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L01
  
mov       rcx,[rbx+18]
 
lea       rdx,[rsp+20]
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35BEFA0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L02
 
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L02
  
mov       rax,[rbx+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
nop
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L05
 
M02_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M02_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M02_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L04
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M02_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L01
  
mov       [rbx+18],ebp
 
jmp       short M02_L04
 
M02_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L01
 
M02_L03
  
mov       rcx,rbx
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M02_L04
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        near ptr M02_L00
 
M02_L05
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M02_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M03_L10
 
mov       rcx,1653BC08B58
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M03_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M03_L11
 
M03_L00
  
mov       rdi,[rbp-28]
 
M03_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FF9B30EC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M03_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M03_L09
 
M03_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M03_L04
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M03_L07
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M03_L07
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M03_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M03_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L03
  
mov       [rdi+18],r14d
 
jmp       short M03_L07
 
M03_L04
  
call      CORINFO_HELP_RNGCHKFAIL
 
M03_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M03_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M03_L03
 
M03_L06
  
mov       rcx,rdi
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M03_L07
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        near ptr M03_L02
 
jmp       short M03_L09
 
M03_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M03_L09
  
mov       rcx,rdi
 
call      qword ptr [7FF9B30DE778]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M03_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L10
  
mov       rax,1A5CDB20008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35BEFA0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M03_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M03_L00
 
M03_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M03_L01
 
M03_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,1653BC08B58
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M03_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M03_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FF9B30EC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M03_L15
 
M03_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M03_L18
 
M03_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M03_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M03_L18
 
M03_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M03_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35BEF70]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M03_L18
 
M03_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M03_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rdi+18],rcx
 
jne       short M04_L03
 
mov       rcx,[rsi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rsi+1C]
 
mov       rdx,[rdi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M04_L04
 
mov       rcx,rsi
 
xor       edx,edx
 
call      qword ptr [7FF9B30EC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
M04_L00
  
cmp       qword ptr [rbx+20],0
 
jne       short M04_L05
 
lea       rcx,[rbx+20]
 
mov       rdx,[rbx]
 
mov       rdx,[rdx+30]
 
mov       rdx,[rdx+8]
 
cmp       qword ptr [rdx+8],30
 
jle       short M04_L01
 
M04_L01
  
mov       rdx,rsi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
jne       short M04_L05
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L02
  
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L03
  
mov       rdx,rsi
 
mov       rcx,[rdi+8]
 
call      qword ptr [rdi+18]
 
test      eax,eax
 
jne       short M04_L00
 
M04_L04
  
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L05
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M04_L02
 
mov       rcx,[rbx+18]
 
mov       rdx,rsi
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35BEF70]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionStringBuilderPool()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,20D834081A8
 
mov       rsi,[rcx]
 
mov       rcx,rsi
 
call      qword ptr [7FF9B35BE578]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
 
mov       rdi,rax
 
mov       rcx,offset MT_System.Action
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rbp+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
mov       [rbp+18],rcx
 
mov       [rsp+30],rbp
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FF9B388D2A8]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       rbp,rax
 
mov       rcx,rsi
 
mov       rdx,rdi
 
call      qword ptr [7FF9B35AEA30]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
 
mov       [rsp+28],rbp
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L00
  
call      qword ptr [7FF9B2E441F8]
 
int       3
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rcx,[rbx+20]
 
mov       [rsp+20],rcx
 
cmp       qword ptr [rsp+20],0
 
je        short M01_L01
 
lea       rcx,[rbx+20]
 
mov       r8,[rbx]
 
mov       r8,[r8+30]
 
mov       r8,[r8+8]
 
cmp       qword ptr [r8+8],30
 
jle       short M01_L00
 
M01_L00
  
mov       r8,[rsp+20]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rsp+20]
 
jne       short M01_L01
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L01
  
mov       rcx,[rbx+18]
 
lea       rdx,[rsp+20]
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35AEFA0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L02
 
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L02
  
mov       rax,[rbx+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
nop
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       short M02_L03
 
M02_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M02_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M02_L02
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L02
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M02_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L01
  
mov       [rbx+18],ebp
 
M02_L02
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        short M02_L00
 
M02_L03
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M02_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L01
 
M02_L05
  
mov       rcx,rbx
 
call      qword ptr [7FF9B30DCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M02_L02
 
M02_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M03_L10
 
mov       rcx,20D83408B58
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M03_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M03_L11
 
M03_L00
  
mov       rdi,[rbp-28]
 
M03_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FF9B30DC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M03_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M03_L09
 
M03_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M03_L05
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M03_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M03_L04
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M03_L07
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M03_L06
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L03
  
mov       [rdi+18],r14d
 
M03_L04
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        short M03_L02
 
jmp       short M03_L09
 
M03_L05
  
call      CORINFO_HELP_RNGCHKFAIL
 
M03_L06
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M03_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M03_L03
 
M03_L07
  
mov       rcx,rdi
 
call      qword ptr [7FF9B30DCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M03_L04
 
M03_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M03_L09
  
mov       rcx,rdi
 
call      qword ptr [7FF9B30CE778]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M03_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L10
  
mov       rax,24E15400008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35AEFA0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M03_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M03_L00
 
M03_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M03_L01
 
M03_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,20D83408B58
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M03_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M03_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FF9B30DC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M03_L15
 
M03_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M03_L18
 
M03_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M03_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M03_L18
 
M03_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M03_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35AEF70]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M03_L18
 
M03_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M03_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rdi+18],rcx
 
jne       short M04_L03
 
mov       rcx,[rsi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rsi+1C]
 
mov       rdx,[rdi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M04_L04
 
mov       rcx,rsi
 
xor       edx,edx
 
call      qword ptr [7FF9B30DC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
M04_L00
  
cmp       qword ptr [rbx+20],0
 
jne       short M04_L05
 
lea       rcx,[rbx+20]
 
mov       rdx,[rbx]
 
mov       rdx,[rdx+30]
 
mov       rdx,[rdx+8]
 
cmp       qword ptr [rdx+8],30
 
jle       short M04_L01
 
M04_L01
  
mov       rdx,rsi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
jne       short M04_L05
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L02
  
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L03
  
mov       rdx,rsi
 
mov       rcx,[rdi+8]
 
call      qword ptr [rdi+18]
 
test      eax,eax
 
jne       short M04_L00
 
M04_L04
  
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L05
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M04_L02
 
mov       rcx,[rbx+18]
 
mov       rdx,rsi
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35AEF70]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionStringBuilderPool()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,14CD88061B0
 
mov       rsi,[rcx]
 
mov       rcx,rsi
 
call      qword ptr [7FF9B35EE4D8]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
 
mov       rdi,rax
 
mov       rcx,offset MT_System.Action
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rbp+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
mov       [rbp+18],rcx
 
mov       [rsp+30],rbp
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FF9B38BD2A8]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       rbp,rax
 
mov       rcx,rsi
 
mov       rdx,rdi
 
call      qword ptr [7FF9B35DE6A0]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
 
mov       [rsp+28],rbp
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L00
  
call      qword ptr [7FF9B2E741F8]
 
int       3
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rcx,[rbx+20]
 
mov       [rsp+20],rcx
 
cmp       qword ptr [rsp+20],0
 
je        short M01_L01
 
lea       rcx,[rbx+20]
 
mov       r8,[rbx]
 
mov       r8,[r8+30]
 
mov       r8,[r8+8]
 
cmp       qword ptr [r8+8],30
 
jle       short M01_L00
 
M01_L00
  
mov       r8,[rsp+20]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rsp+20]
 
jne       short M01_L01
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L01
  
mov       rcx,[rbx+18]
 
lea       rdx,[rsp+20]
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35DEC10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L02
 
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L02
  
mov       rax,[rbx+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
nop
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       short M02_L03
 
M02_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M02_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M02_L02
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L02
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M02_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L01
  
mov       [rbx+18],ebp
 
M02_L02
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        short M02_L00
 
M02_L03
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M02_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L01
 
M02_L05
  
mov       rcx,rbx
 
call      qword ptr [7FF9B310CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M02_L02
 
M02_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M03_L10
 
mov       rcx,14CD8806B60
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M03_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M03_L11
 
M03_L00
  
mov       rdi,[rbp-28]
 
M03_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FF9B310C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M03_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M03_L09
 
M03_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M03_L05
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M03_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M03_L04
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M03_L07
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M03_L06
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L03
  
mov       [rdi+18],r14d
 
M03_L04
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        short M03_L02
 
jmp       short M03_L09
 
M03_L05
  
call      CORINFO_HELP_RNGCHKFAIL
 
M03_L06
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M03_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M03_L03
 
M03_L07
  
mov       rcx,rdi
 
call      qword ptr [7FF9B310CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M03_L04
 
M03_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M03_L09
  
mov       rcx,rdi
 
call      qword ptr [7FF9B30FE778]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M03_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L10
  
mov       rax,18D6A830008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35DEC10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M03_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M03_L00
 
M03_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M03_L01
 
M03_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,14CD8806B60
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M03_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M03_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FF9B310C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M03_L15
 
M03_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M03_L18
 
M03_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M03_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M03_L18
 
M03_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M03_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35DEBE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M03_L18
 
M03_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M03_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rdi+18],rcx
 
jne       short M04_L03
 
mov       rcx,[rsi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rsi+1C]
 
mov       rdx,[rdi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M04_L04
 
mov       rcx,rsi
 
xor       edx,edx
 
call      qword ptr [7FF9B310C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
M04_L00
  
cmp       qword ptr [rbx+20],0
 
jne       short M04_L05
 
lea       rcx,[rbx+20]
 
mov       rdx,[rbx]
 
mov       rdx,[rdx+30]
 
mov       rdx,[rdx+8]
 
cmp       qword ptr [rdx+8],30
 
jle       short M04_L01
 
M04_L01
  
mov       rdx,rsi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
jne       short M04_L05
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L02
  
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L03
  
mov       rdx,rsi
 
mov       rcx,[rdi+8]
 
call      qword ptr [rdi+18]
 
test      eax,eax
 
jne       short M04_L00
 
M04_L04
  
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L05
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M04_L02
 
mov       rcx,[rbx+18]
 
mov       rdx,rsi
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35DEBE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionStringBuilderPool()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,2B51B8081A8
 
mov       rsi,[rcx]
 
mov       rcx,rsi
 
call      qword ptr [7FF9B35DE578]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
 
mov       rdi,rax
 
mov       rcx,offset MT_System.Action
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rbp+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
mov       [rbp+18],rcx
 
mov       [rsp+30],rbp
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FF9B38AD2A8]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       rbp,rax
 
mov       rcx,rsi
 
mov       rdx,rdi
 
call      qword ptr [7FF9B35CEA30]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
 
mov       [rsp+28],rbp
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L00
  
call      qword ptr [7FF9B2E641F8]
 
int       3
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rcx,[rbx+20]
 
mov       [rsp+20],rcx
 
cmp       qword ptr [rsp+20],0
 
je        short M01_L01
 
lea       rcx,[rbx+20]
 
mov       r8,[rbx]
 
mov       r8,[r8+30]
 
mov       r8,[r8+8]
 
cmp       qword ptr [r8+8],30
 
jle       short M01_L00
 
M01_L00
  
mov       r8,[rsp+20]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rsp+20]
 
jne       short M01_L01
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L01
  
mov       rcx,[rbx+18]
 
lea       rdx,[rsp+20]
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35CEFA0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L02
 
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L02
  
mov       rax,[rbx+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
nop
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       short M02_L03
 
M02_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M02_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M02_L02
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L02
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M02_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L01
  
mov       [rbx+18],ebp
 
M02_L02
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        short M02_L00
 
M02_L03
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M02_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L01
 
M02_L05
  
mov       rcx,rbx
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M02_L02
 
M02_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M03_L10
 
mov       rcx,2B51B808B58
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M03_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M03_L11
 
M03_L00
  
mov       rdi,[rbp-28]
 
M03_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FF9B30FC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M03_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M03_L09
 
M03_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M03_L05
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M03_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M03_L04
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M03_L07
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M03_L06
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L03
  
mov       [rdi+18],r14d
 
M03_L04
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        short M03_L02
 
jmp       short M03_L09
 
M03_L05
  
call      CORINFO_HELP_RNGCHKFAIL
 
M03_L06
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M03_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M03_L03
 
M03_L07
  
mov       rcx,rdi
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M03_L04
 
M03_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M03_L09
  
mov       rcx,rdi
 
call      qword ptr [7FF9B30EE778]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M03_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L10
  
mov       rax,2F5AD860008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35CEFA0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M03_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M03_L00
 
M03_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M03_L01
 
M03_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,2B51B808B58
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M03_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M03_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FF9B30FC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M03_L15
 
M03_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M03_L18
 
M03_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M03_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M03_L18
 
M03_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M03_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35CEF70]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M03_L18
 
M03_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M03_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rdi+18],rcx
 
jne       short M04_L03
 
mov       rcx,[rsi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rsi+1C]
 
mov       rdx,[rdi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M04_L04
 
mov       rcx,rsi
 
xor       edx,edx
 
call      qword ptr [7FF9B30FC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
M04_L00
  
cmp       qword ptr [rbx+20],0
 
jne       short M04_L05
 
lea       rcx,[rbx+20]
 
mov       rdx,[rbx]
 
mov       rdx,[rdx+30]
 
mov       rdx,[rdx+8]
 
cmp       qword ptr [rdx+8],30
 
jle       short M04_L01
 
M04_L01
  
mov       rdx,rsi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
jne       short M04_L05
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L02
  
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L03
  
mov       rdx,rsi
 
mov       rcx,[rdi+8]
 
call      qword ptr [rdi+18]
 
test      eax,eax
 
jne       short M04_L00
 
M04_L04
  
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L05
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M04_L02
 
mov       rcx,[rbx+18]
 
mov       rdx,rsi
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35CEF70]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformActionStringBuilderPool()
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,1D65F0081A8
 
mov       rsi,[rcx]
 
mov       rcx,rsi
 
call      qword ptr [7FF9B35EE578]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
 
mov       rdi,rax
 
mov       rcx,offset MT_System.Action
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbp,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rbp+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
mov       [rbp+18],rcx
 
mov       [rsp+30],rbp
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FF9B38BD2A8]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       rbp,rax
 
mov       rcx,rsi
 
mov       rdx,rdi
 
call      qword ptr [7FF9B35DEA30]; Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
 
mov       [rsp+28],rbp
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M00_L00
  
call      qword ptr [7FF9B2E741F8]
 
int       3
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].Get()
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rcx,[rbx+20]
 
mov       [rsp+20],rcx
 
cmp       qword ptr [rsp+20],0
 
je        short M01_L01
 
lea       rcx,[rbx+20]
 
mov       r8,[rbx]
 
mov       r8,[r8+30]
 
mov       r8,[r8+8]
 
cmp       qword ptr [r8+8],30
 
jle       short M01_L00
 
M01_L00
  
mov       r8,[rsp+20]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rsp+20]
 
jne       short M01_L01
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L01
  
mov       rcx,[rbx+18]
 
lea       rdx,[rsp+20]
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35DEFA0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L02
 
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
mov       rax,[rsp+20]
 
add       rsp,30
 
pop       rbx
 
ret
 
M01_L02
  
mov       rax,[rbx+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
nop
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L05
 
M02_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M02_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M02_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L04
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M02_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L01
  
mov       [rbx+18],ebp
 
jmp       short M02_L04
 
M02_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L01
 
M02_L03
  
mov       rcx,rbx
 
call      qword ptr [7FF9B310CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M02_L04
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        near ptr M02_L00
 
M02_L05
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M02_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M03_L10
 
mov       rcx,1D65F008B58
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M03_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M03_L11
 
M03_L00
  
mov       rdi,[rbp-28]
 
M03_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FF9B310C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|20_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M03_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M03_L09
 
M03_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M03_L04
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M03_L07
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M03_L07
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M03_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M03_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L03
  
mov       [rdi+18],r14d
 
jmp       short M03_L07
 
M03_L04
  
call      CORINFO_HELP_RNGCHKFAIL
 
M03_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M03_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M03_L03
 
M03_L06
  
mov       rcx,rdi
 
call      qword ptr [7FF9B310CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M03_L07
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        near ptr M03_L02
 
jmp       short M03_L09
 
M03_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M03_L09
  
mov       rcx,rdi
 
call      qword ptr [7FF9B30FE778]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M03_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L10
  
mov       rax,216F0EA0008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M03_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35DEFA0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M03_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M03_L00
 
M03_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M03_L01
 
M03_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,1D65F008B58
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M03_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M03_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FF9B310C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M03_L15
 
M03_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M03_L18
 
M03_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M03_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M03_L18
 
M03_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M03_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35DEF70]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M03_L18
 
M03_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M03_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
Microsoft.Extensions.ObjectPool.DefaultObjectPool`1[[System.__Canon, System.Private.CoreLib]].ReturnCore(System.__Canon)
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       [rsp+28],rcx
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rdi+18],rcx
 
jne       short M04_L03
 
mov       rcx,[rsi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rsi+1C]
 
mov       rdx,[rdi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M04_L04
 
mov       rcx,rsi
 
xor       edx,edx
 
call      qword ptr [7FF9B310C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
M04_L00
  
cmp       qword ptr [rbx+20],0
 
jne       short M04_L05
 
lea       rcx,[rbx+20]
 
mov       rdx,[rbx]
 
mov       rdx,[rdx+30]
 
mov       rdx,[rdx+8]
 
cmp       qword ptr [rdx+8],30
 
jle       short M04_L01
 
M04_L01
  
mov       rdx,rsi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
jne       short M04_L05
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L02
  
lea       rax,[rbx+2C]
 
lock dec  dword ptr [rax]
 
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L03
  
mov       rdx,rsi
 
mov       rcx,[rdi+8]
 
call      qword ptr [rdi+18]
 
test      eax,eax
 
jne       short M04_L00
 
M04_L04
  
xor       eax,eax
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 
M04_L05
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M04_L02
 
mov       rcx,[rbx+18]
 
mov       rdx,rsi
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35DEF70]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
mov       eax,1
 
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ToDelimitedStringComparison()
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+288]
 
mov       ebp,[rdi+44]
 
xor       r14d,r14d
 
jmp       near ptr M00_L04
 
M00_L00
  
mov       ecx,[rsi+1C]
 
add       ecx,[rsi+18]
 
test      ecx,ecx
 
jle       short M00_L01
 
mov       ecx,[rsi+18]
 
mov       rdx,[rsi+8]
 
cmp       [rdx+8],ecx
 
ja        near ptr M00_L07
 
mov       rcx,rsi
 
mov       edx,2C
 
call      qword ptr [7FF9B30DC3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M00_L01
  
mov       rcx,r15
 
mov       r8,r13
 
mov       rdx,2A338970210
 
call      qword ptr [7FF9B2E46B20]; System.String.Concat(System.String, System.String, System.String)
 
mov       r15,rax
 
mov       r8,gs:[58]
 
mov       r8,[r8+38]
 
cmp       dword ptr [r8+190],4
 
jl        near ptr M00_L12
 
mov       r8,[r8+198]
 
mov       r8,[r8+20]
 
test      r8,r8
 
je        near ptr M00_L12
 
mov       rax,[r8]
 
add       rax,10
 
M00_L02
  
cmp       qword ptr [rax+8],0
 
jne       short M00_L03
 
mov       r8,262A6800438
 
cmp       qword ptr [r8],0
 
jne       short M00_L03
 
mov       r8,262A6800418
 
cmp       qword ptr [r8],0
 
je        near ptr M00_L13
 
M00_L03
  
cmp       [r15],r15b
 
lea       rdx,[r15+0C]
 
mov       r15d,[r15+8]
 
test      r15d,r15d
 
je        short M00_L04
 
mov       r8,[rsi+8]
 
mov       r13d,[rsi+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
jbe       near ptr M00_L08
 
mov       rcx,rsi
 
mov       r8d,r15d
 
call      qword ptr [7FF9B30DCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L04
  
cmp       ebp,[rdi+44]
 
jne       near ptr M00_L11
 
M00_L05
  
mov       ecx,[rdi+38]
 
cmp       r14d,ecx
 
jb        short M00_L06
 
mov       rcx,rsi
 
call      qword ptr [7FF9B30CE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       ecx,ecx
 
mov       [rbx+8],rcx
 
add       rsp,30
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L06
  
mov       rcx,[rdi+10]
 
lea       edx,[r14+1]
 
mov       r15d,edx
 
cmp       r14d,[rcx+8]
 
jae       near ptr M00_L14
 
mov       edx,r14d
 
lea       rdx,[rdx+rdx*2]
 
lea       rcx,[rcx+rdx*8+10]
 
cmp       dword ptr [rcx+14],0FFFFFFFF
 
mov       r14d,r15d
 
jl        short M00_L05
 
mov       r15,[rcx]
 
mov       r13,[rcx+8]
 
jmp       near ptr M00_L00
 
M00_L07
  
mov       ecx,ecx
 
mov       word ptr [rdx+rcx*2+10],2C
 
inc       dword ptr [rsi+18]
 
jmp       near ptr M00_L01
 
M00_L08
  
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jg        short M00_L10
 
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M00_L09
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
M00_L09
  
add       r15d,r13d
 
mov       [rsi+18],r15d
 
jmp       near ptr M00_L04
 
M00_L10
  
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
jmp       short M00_L09
 
M00_L11
  
call      qword ptr [7FF9B303EFE8]
 
int       3
 
M00_L12
  
mov       ecx,4
 
call      CORINFO_HELP_GETSHARED_GCTHREADSTATIC_BASE_NOCTOR_OPTIMIZED
 
jmp       near ptr M00_L02
 
M00_L13
  
call      qword ptr [7FF9B2FE4030]; System.Globalization.CultureInfo.InitializeUserDefaultCulture()
 
jmp       near ptr M00_L03
 
M00_L14
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.AppendWithExpansion(Char)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
mov       rcx,rbx
 
mov       edx,1
 
call      qword ptr [7FF9B30DCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
mov       rax,[rbx+8]
 
cmp       dword ptr [rax+8],0
 
jbe       short M01_L00
 
mov       [rax+10],si
 
inc       dword ptr [rbx+18]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L00
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.Concat(System.String, System.String, System.String)
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,r8
 
test      rbx,rbx
 
je        near ptr M02_L02
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        near ptr M02_L02
 
test      rsi,rsi
 
je        near ptr M02_L03
 
mov       r14d,[rsi+8]
 
test      r14d,r14d
 
je        near ptr M02_L03
 
test      rdi,rdi
 
je        near ptr M02_L00
 
mov       r15d,[rdi+8]
 
test      r15d,r15d
 
je        near ptr M02_L00
 
mov       r13d,ebp
 
mov       ecx,r14d
 
add       rcx,r13
 
mov       eax,r15d
 
add       rcx,rax
 
cmp       rcx,7FFFFFFF
 
jg        near ptr M02_L01
 
call      00007FF9B2E41E60
 
mov       r12,rax
 
cmp       [r12],r12b
 
lea       rax,[r12+0C]
 
mov       [rsp+20],rax
 
mov       rcx,rax
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rbx,[rsp+20]
 
lea       rcx,[rbx+r13*2]
 
lea       rdx,[rsi+0C]
 
mov       r8d,r14d
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
add       ebp,r14d
 
movsxd    r8,ebp
 
lea       rcx,[rbx+r8*2]
 
lea       rdx,[rdi+0C]
 
mov       r8d,r15d
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r12
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M02_L00
  
mov       rcx,rbx
 
mov       rdx,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FF9B2E46B08]; System.String.Concat(System.String, System.String)
 
M02_L01
  
call      qword ptr [7FF9B303EF40]
 
int       3
 
M02_L02
  
mov       rcx,rsi
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FF9B2E46B08]; System.String.Concat(System.String, System.String)
 
M02_L03
  
mov       rcx,rbx
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FF9B2E46B08]; System.String.Concat(System.String, System.String)
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FF9B30DCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2CF4000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B338F6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2EFD470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FF9B303E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FF9B303E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      00007FF9B2E41E60
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2CF4000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B338F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2EFD470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,2A338970008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M05_L03
 
test      r8b,18
 
jne       short M05_L01
 
test      r8b,4
 
je        short M05_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M05_L00
  
ret
 
M05_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M05_L00
 
M05_L02
  
test      r8,r8
 
je        short M05_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M05_L06
 
jmp       short M05_L00
 
M05_L03
  
cmp       r8,40
 
ja        short M05_L07
 
M05_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M05_L11
 
M05_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M05_L00
 
M05_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M05_L00
 
M05_L07
  
cmp       r8,800
 
ja        short M05_L10
 
mov       r9,r8
 
shr       r9,6
 
M05_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M05_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M05_L04
 
jmp       short M05_L05
 
M05_L09
  
cmp       rcx,rdx
 
je        near ptr M05_L00
 
M05_L10
  
jmp       qword ptr [7FF9B2EF5B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M05_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M05_L05
 
System.Globalization.CultureInfo.InitializeUserDefaultCulture()
push      rsi
 
push      rbx
 
sub       rsp,28
 
call      qword ptr [7FF9D5F541F8]
 
mov       rbx,rax
 
lea       rsi,[rbx+3E0]
 
call      qword ptr [7FF9D5F67B80]
 
mov       rdx,rax
 
mov       rcx,rsi
 
xor       r8d,r8d
 
call      qword ptr [7FF9D5F68B78]; System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
mov       rax,[rbx+3E0]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ToDelimitedStringComparison()
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+288]
 
mov       ebp,[rdi+44]
 
xor       r14d,r14d
 
jmp       near ptr M00_L05
 
M00_L00
  
mov       ecx,[rsi+1C]
 
mov       edx,[rsi+18]
 
add       ecx,edx
 
test      ecx,ecx
 
jle       short M00_L02
 
mov       ecx,edx
 
mov       rax,[rsi+8]
 
cmp       [rax+8],ecx
 
jbe       short M00_L01
 
mov       ecx,ecx
 
mov       word ptr [rax+rcx*2+10],2C
 
inc       edx
 
mov       [rsi+18],edx
 
jmp       short M00_L02
 
M00_L01
  
mov       rcx,rsi
 
mov       edx,2C
 
call      qword ptr [7FF9B30DC3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M00_L02
  
mov       rcx,r15
 
mov       r8,r13
 
mov       rdx,24CAB2E0210
 
call      qword ptr [7FF9B2E46B20]; System.String.Concat(System.String, System.String, System.String)
 
mov       r15,rax
 
mov       r8,gs:[58]
 
mov       r8,[r8+30]
 
cmp       dword ptr [r8+190],4
 
jl        near ptr M00_L12
 
mov       r8,[r8+198]
 
mov       r8,[r8+20]
 
test      r8,r8
 
je        near ptr M00_L12
 
mov       rax,[r8]
 
add       rax,10
 
M00_L03
  
cmp       qword ptr [rax+8],0
 
jne       short M00_L04
 
mov       r8,20C19400438
 
cmp       qword ptr [r8],0
 
jne       short M00_L04
 
mov       r8,20C19400418
 
cmp       qword ptr [r8],0
 
je        near ptr M00_L13
 
M00_L04
  
cmp       [r15],r15b
 
lea       rdx,[r15+0C]
 
mov       r15d,[r15+8]
 
test      r15d,r15d
 
je        short M00_L05
 
mov       r8,[rsi+8]
 
mov       r13d,[rsi+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
jbe       near ptr M00_L08
 
mov       rcx,rsi
 
mov       r8d,r15d
 
call      qword ptr [7FF9B30DCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L05
  
cmp       ebp,[rdi+44]
 
jne       near ptr M00_L11
 
M00_L06
  
mov       ecx,[rdi+38]
 
cmp       r14d,ecx
 
jb        short M00_L07
 
mov       rcx,rsi
 
call      qword ptr [7FF9B30CE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       ecx,ecx
 
mov       [rbx+8],rcx
 
add       rsp,30
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L07
  
mov       rcx,[rdi+10]
 
lea       edx,[r14+1]
 
mov       r15d,edx
 
cmp       r14d,[rcx+8]
 
jae       near ptr M00_L14
 
mov       edx,r14d
 
lea       rdx,[rdx+rdx*2]
 
lea       rcx,[rcx+rdx*8+10]
 
cmp       dword ptr [rcx+14],0FFFFFFFF
 
mov       r14d,r15d
 
jl        short M00_L06
 
mov       r15,[rcx]
 
mov       r13,[rcx+8]
 
jmp       near ptr M00_L00
 
M00_L08
  
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jle       short M00_L10
 
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L09
  
add       r15d,r13d
 
mov       [rsi+18],r15d
 
jmp       near ptr M00_L05
 
M00_L10
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M00_L09
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L09
 
M00_L11
  
call      qword ptr [7FF9B303EFE8]
 
int       3
 
M00_L12
  
mov       ecx,4
 
call      CORINFO_HELP_GETSHARED_GCTHREADSTATIC_BASE_NOCTOR_OPTIMIZED
 
jmp       near ptr M00_L03
 
M00_L13
  
call      qword ptr [7FF9B2FE4030]; System.Globalization.CultureInfo.InitializeUserDefaultCulture()
 
jmp       near ptr M00_L04
 
M00_L14
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.AppendWithExpansion(Char)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
mov       rcx,rbx
 
mov       edx,1
 
call      qword ptr [7FF9B30DCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
mov       rax,[rbx+8]
 
cmp       dword ptr [rax+8],0
 
jbe       short M01_L00
 
mov       [rax+10],si
 
inc       dword ptr [rbx+18]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L00
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.Concat(System.String, System.String, System.String)
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,r8
 
test      rbx,rbx
 
je        near ptr M02_L02
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        near ptr M02_L02
 
test      rsi,rsi
 
je        near ptr M02_L03
 
mov       r14d,[rsi+8]
 
test      r14d,r14d
 
je        near ptr M02_L03
 
test      rdi,rdi
 
je        near ptr M02_L00
 
mov       r15d,[rdi+8]
 
test      r15d,r15d
 
je        near ptr M02_L00
 
mov       r13d,ebp
 
mov       ecx,r14d
 
add       rcx,r13
 
mov       eax,r15d
 
add       rcx,rax
 
cmp       rcx,7FFFFFFF
 
jg        near ptr M02_L01
 
call      00007FF9B2E41E60
 
mov       r12,rax
 
cmp       [r12],r12b
 
lea       rax,[r12+0C]
 
mov       [rsp+20],rax
 
mov       rcx,rax
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rbx,[rsp+20]
 
lea       rcx,[rbx+r13*2]
 
lea       rdx,[rsi+0C]
 
mov       r8d,r14d
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
add       ebp,r14d
 
movsxd    r8,ebp
 
lea       rcx,[rbx+r8*2]
 
lea       rdx,[rdi+0C]
 
mov       r8d,r15d
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r12
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M02_L00
  
mov       rcx,rbx
 
mov       rdx,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FF9B2E46B08]; System.String.Concat(System.String, System.String)
 
M02_L01
  
call      qword ptr [7FF9B303EF40]
 
int       3
 
M02_L02
  
mov       rcx,rsi
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FF9B2E46B08]; System.String.Concat(System.String, System.String)
 
M02_L03
  
mov       rcx,rbx
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FF9B2E46B08]; System.String.Concat(System.String, System.String)
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M03_L03
 
cmp       r8d,edi
 
jl        near ptr M03_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M03_L01
 
test      r8,r8
 
je        near ptr M03_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M03_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M03_L00
  
cmp       ebp,r10d
 
ja        near ptr M03_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M03_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FF9B30DCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M03_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M03_L07
 
M03_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M03_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2CF4000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B338F6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2EFD470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M03_L04
  
test      eax,eax
 
jne       short M03_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M03_L00
 
M03_L05
  
call      qword ptr [7FF9B303E9D0]
 
int       3
 
M03_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M03_L02
 
M03_L07
  
call      qword ptr [7FF9B303E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M04_L03
 
call      00007FF9B2E41E60
 
mov       rsi,rax
 
M04_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M04_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M04_L02
 
cmp       [rdx+8],r8d
 
jb        short M04_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M04_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M04_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M04_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2CF4000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B338F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2EFD470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L03
  
mov       rax,24CAB2E0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M05_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M05_L03
 
test      r8b,18
 
jne       short M05_L01
 
test      r8b,4
 
je        short M05_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M05_L00
  
ret
 
M05_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M05_L00
 
M05_L02
  
test      r8,r8
 
je        short M05_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M05_L06
 
jmp       short M05_L00
 
M05_L03
  
cmp       r8,40
 
ja        short M05_L07
 
M05_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M05_L11
 
M05_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M05_L00
 
M05_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M05_L00
 
M05_L07
  
cmp       r8,800
 
ja        short M05_L10
 
mov       r9,r8
 
shr       r9,6
 
M05_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M05_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M05_L04
 
jmp       short M05_L05
 
M05_L09
  
cmp       rcx,rdx
 
je        near ptr M05_L00
 
M05_L10
  
jmp       qword ptr [7FF9B2EF5B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M05_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M05_L05
 
System.Globalization.CultureInfo.InitializeUserDefaultCulture()
push      rsi
 
push      rbx
 
sub       rsp,28
 
call      qword ptr [7FF9D5F541F8]
 
mov       rbx,rax
 
lea       rsi,[rbx+3E0]
 
call      qword ptr [7FF9D5F67B80]
 
mov       rdx,rax
 
mov       rcx,rsi
 
xor       r8d,r8d
 
call      qword ptr [7FF9D5F68B78]; System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
mov       rax,[rbx+3E0]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ToDelimitedStringComparison()
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+288]
 
mov       ebp,[rdi+44]
 
xor       r14d,r14d
 
jmp       near ptr M00_L08
 
M00_L00
  
mov       ecx,[rsi+1C]
 
mov       edx,[rsi+18]
 
add       ecx,edx
 
test      ecx,ecx
 
jle       short M00_L02
 
mov       ecx,edx
 
mov       rax,[rsi+8]
 
cmp       [rax+8],ecx
 
jbe       short M00_L01
 
mov       ecx,ecx
 
mov       word ptr [rax+rcx*2+10],2C
 
inc       edx
 
mov       [rsi+18],edx
 
jmp       short M00_L02
 
M00_L01
  
mov       rcx,rsi
 
mov       edx,2C
 
call      qword ptr [7FF9B30FC3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M00_L02
  
mov       rcx,r15
 
mov       r8,r13
 
mov       rdx,2342B430210
 
call      qword ptr [7FF9B2E66B20]; System.String.Concat(System.String, System.String, System.String)
 
mov       r15,rax
 
mov       r8,gs:[58]
 
mov       r8,[r8+38]
 
cmp       dword ptr [r8+190],4
 
jl        near ptr M00_L12
 
mov       r8,[r8+198]
 
mov       r8,[r8+20]
 
test      r8,r8
 
je        near ptr M00_L12
 
mov       rax,[r8]
 
add       rax,10
 
M00_L03
  
cmp       qword ptr [rax+8],0
 
jne       short M00_L04
 
mov       r8,1F3A1400438
 
cmp       qword ptr [r8],0
 
jne       short M00_L04
 
mov       r8,1F3A1400418
 
cmp       qword ptr [r8],0
 
je        near ptr M00_L13
 
M00_L04
  
cmp       [r15],r15b
 
lea       rdx,[r15+0C]
 
mov       r15d,[r15+8]
 
test      r15d,r15d
 
je        short M00_L08
 
mov       r8,[rsi+8]
 
mov       r13d,[rsi+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M00_L07
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jle       short M00_L06
 
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L05
  
add       r15d,r13d
 
mov       [rsi+18],r15d
 
jmp       short M00_L08
 
M00_L06
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M00_L05
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L05
 
M00_L07
  
mov       rcx,rsi
 
mov       r8d,r15d
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L08
  
cmp       ebp,[rdi+44]
 
jne       short M00_L11
 
M00_L09
  
mov       ecx,[rdi+38]
 
cmp       r14d,ecx
 
jb        short M00_L10
 
mov       rcx,rsi
 
call      qword ptr [7FF9B30EE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       ecx,ecx
 
mov       [rbx+8],rcx
 
add       rsp,30
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L10
  
mov       rcx,[rdi+10]
 
lea       edx,[r14+1]
 
mov       r15d,edx
 
cmp       r14d,[rcx+8]
 
jae       short M00_L14
 
mov       edx,r14d
 
lea       rdx,[rdx+rdx*2]
 
lea       rcx,[rcx+rdx*8+10]
 
cmp       dword ptr [rcx+14],0FFFFFFFF
 
mov       r14d,r15d
 
jl        short M00_L09
 
mov       r15,[rcx]
 
mov       r13,[rcx+8]
 
jmp       near ptr M00_L00
 
M00_L11
  
call      qword ptr [7FF9B305EFE8]
 
int       3
 
M00_L12
  
mov       ecx,4
 
call      CORINFO_HELP_GETSHARED_GCTHREADSTATIC_BASE_NOCTOR_OPTIMIZED
 
jmp       near ptr M00_L03
 
M00_L13
  
call      qword ptr [7FF9B3004030]; System.Globalization.CultureInfo.InitializeUserDefaultCulture()
 
jmp       near ptr M00_L04
 
M00_L14
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.AppendWithExpansion(Char)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
mov       rcx,rbx
 
mov       edx,1
 
call      qword ptr [7FF9B30FCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
mov       rax,[rbx+8]
 
cmp       dword ptr [rax+8],0
 
jbe       short M01_L00
 
mov       [rax+10],si
 
inc       dword ptr [rbx+18]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L00
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.Concat(System.String, System.String, System.String)
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,r8
 
test      rbx,rbx
 
je        near ptr M02_L02
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        near ptr M02_L02
 
test      rsi,rsi
 
je        near ptr M02_L03
 
mov       r14d,[rsi+8]
 
test      r14d,r14d
 
je        near ptr M02_L03
 
test      rdi,rdi
 
je        near ptr M02_L00
 
mov       r15d,[rdi+8]
 
test      r15d,r15d
 
je        near ptr M02_L00
 
mov       r13d,ebp
 
mov       ecx,r14d
 
add       rcx,r13
 
mov       eax,r15d
 
add       rcx,rax
 
cmp       rcx,7FFFFFFF
 
jg        near ptr M02_L01
 
call      00007FF9B2E61E60
 
mov       r12,rax
 
cmp       [r12],r12b
 
lea       rax,[r12+0C]
 
mov       [rsp+20],rax
 
mov       rcx,rax
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rbx,[rsp+20]
 
lea       rcx,[rbx+r13*2]
 
lea       rdx,[rsi+0C]
 
mov       r8d,r14d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
add       ebp,r14d
 
movsxd    r8,ebp
 
lea       rcx,[rbx+r8*2]
 
lea       rdx,[rdi+0C]
 
mov       r8d,r15d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r12
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M02_L00
  
mov       rcx,rbx
 
mov       rdx,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FF9B2E66B08]; System.String.Concat(System.String, System.String)
 
M02_L01
  
call      qword ptr [7FF9B305EF40]
 
int       3
 
M02_L02
  
mov       rcx,rsi
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FF9B2E66B08]; System.String.Concat(System.String, System.String)
 
M02_L03
  
mov       rcx,rbx
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FF9B2E66B08]; System.String.Concat(System.String, System.String)
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M03_L03
 
test      r8b,18
 
jne       short M03_L01
 
test      r8b,4
 
je        short M03_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M03_L00
  
ret
 
M03_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M03_L00
 
M03_L02
  
test      r8,r8
 
je        short M03_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M03_L06
 
jmp       short M03_L00
 
M03_L03
  
cmp       r8,40
 
ja        short M03_L07
 
M03_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M03_L11
 
M03_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M03_L00
 
M03_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M03_L00
 
M03_L07
  
cmp       r8,800
 
ja        short M03_L10
 
mov       r9,r8
 
shr       r9,6
 
M03_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M03_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M03_L04
 
jmp       short M03_L05
 
M03_L09
  
cmp       rcx,rdx
 
je        near ptr M03_L00
 
M03_L10
  
jmp       qword ptr [7FF9B2F15B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M03_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M03_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M04_L03
 
cmp       r8d,edi
 
jl        near ptr M04_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M04_L01
 
test      r8,r8
 
je        near ptr M04_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M04_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M04_L00
  
cmp       ebp,r10d
 
ja        near ptr M04_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M04_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FF9B30FCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M04_L07
 
M04_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M04_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33AF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F1D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L04
  
test      eax,eax
 
jne       short M04_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M04_L00
 
M04_L05
  
call      qword ptr [7FF9B305E9D0]
 
int       3
 
M04_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M04_L02
 
M04_L07
  
call      qword ptr [7FF9B305E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M05_L03
 
call      00007FF9B2E61E60
 
mov       rsi,rax
 
M05_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M05_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M05_L02
 
cmp       [rdx+8],r8d
 
jb        short M05_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M05_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M05_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33AF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F1D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L03
  
mov       rax,2342B430008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CultureInfo.InitializeUserDefaultCulture()
push      rsi
 
push      rbx
 
sub       rsp,28
 
call      qword ptr [7FF9D5F541F8]
 
mov       rbx,rax
 
lea       rsi,[rbx+3E0]
 
call      qword ptr [7FF9D5F67B80]
 
mov       rdx,rax
 
mov       rcx,rsi
 
xor       r8d,r8d
 
call      qword ptr [7FF9D5F68B78]; System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
mov       rax,[rbx+3E0]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ToDelimitedStringComparison()
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+288]
 
mov       ebp,[rdi+44]
 
xor       r14d,r14d
 
jmp       near ptr M00_L08
 
M00_L00
  
mov       ecx,[rsi+1C]
 
mov       edx,[rsi+18]
 
add       ecx,edx
 
test      ecx,ecx
 
jle       short M00_L02
 
mov       ecx,edx
 
mov       rax,[rsi+8]
 
cmp       [rax+8],ecx
 
jbe       short M00_L01
 
mov       ecx,ecx
 
mov       word ptr [rax+rcx*2+10],2C
 
inc       edx
 
mov       [rsi+18],edx
 
jmp       short M00_L02
 
M00_L01
  
mov       rcx,rsi
 
mov       edx,2C
 
call      qword ptr [7FF9B30FC3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M00_L02
  
mov       rcx,r15
 
mov       r8,r13
 
mov       rdx,164A24B0210
 
call      qword ptr [7FF9B2E66B20]; System.String.Concat(System.String, System.String, System.String)
 
mov       r15,rax
 
mov       r8,gs:[58]
 
mov       r8,[r8+38]
 
cmp       dword ptr [r8+190],4
 
jl        near ptr M00_L12
 
mov       r8,[r8+198]
 
mov       r8,[r8+20]
 
test      r8,r8
 
je        near ptr M00_L12
 
mov       rax,[r8]
 
add       rax,10
 
M00_L03
  
cmp       qword ptr [rax+8],0
 
jne       short M00_L04
 
mov       r8,12410800438
 
cmp       qword ptr [r8],0
 
jne       short M00_L04
 
mov       r8,12410800418
 
cmp       qword ptr [r8],0
 
je        near ptr M00_L13
 
M00_L04
  
cmp       [r15],r15b
 
lea       rdx,[r15+0C]
 
mov       r15d,[r15+8]
 
test      r15d,r15d
 
je        short M00_L08
 
mov       r8,[rsi+8]
 
mov       r13d,[rsi+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M00_L07
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jle       short M00_L06
 
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L05
  
add       r15d,r13d
 
mov       [rsi+18],r15d
 
jmp       short M00_L08
 
M00_L06
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M00_L05
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L05
 
M00_L07
  
mov       rcx,rsi
 
mov       r8d,r15d
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L08
  
cmp       ebp,[rdi+44]
 
jne       short M00_L11
 
M00_L09
  
mov       ecx,[rdi+38]
 
cmp       r14d,ecx
 
jb        short M00_L10
 
mov       rcx,rsi
 
call      qword ptr [7FF9B30EE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       ecx,ecx
 
mov       [rbx+8],rcx
 
add       rsp,30
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L10
  
mov       rcx,[rdi+10]
 
lea       edx,[r14+1]
 
mov       r15d,edx
 
cmp       r14d,[rcx+8]
 
jae       short M00_L14
 
mov       edx,r14d
 
lea       rdx,[rdx+rdx*2]
 
lea       rcx,[rcx+rdx*8+10]
 
cmp       dword ptr [rcx+14],0FFFFFFFF
 
mov       r14d,r15d
 
jl        short M00_L09
 
mov       r15,[rcx]
 
mov       r13,[rcx+8]
 
jmp       near ptr M00_L00
 
M00_L11
  
call      qword ptr [7FF9B305EFE8]
 
int       3
 
M00_L12
  
mov       ecx,4
 
call      CORINFO_HELP_GETSHARED_GCTHREADSTATIC_BASE_NOCTOR_OPTIMIZED
 
jmp       near ptr M00_L03
 
M00_L13
  
call      qword ptr [7FF9B3004030]; System.Globalization.CultureInfo.InitializeUserDefaultCulture()
 
jmp       near ptr M00_L04
 
M00_L14
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.AppendWithExpansion(Char)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
mov       rcx,rbx
 
mov       edx,1
 
call      qword ptr [7FF9B30FCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
mov       rax,[rbx+8]
 
cmp       dword ptr [rax+8],0
 
jbe       short M01_L00
 
mov       [rax+10],si
 
inc       dword ptr [rbx+18]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L00
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.Concat(System.String, System.String, System.String)
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,r8
 
test      rbx,rbx
 
je        near ptr M02_L02
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        near ptr M02_L02
 
test      rsi,rsi
 
je        near ptr M02_L03
 
mov       r14d,[rsi+8]
 
test      r14d,r14d
 
je        near ptr M02_L03
 
test      rdi,rdi
 
je        near ptr M02_L00
 
mov       r15d,[rdi+8]
 
test      r15d,r15d
 
je        near ptr M02_L00
 
mov       r13d,ebp
 
mov       ecx,r14d
 
add       rcx,r13
 
mov       eax,r15d
 
add       rcx,rax
 
cmp       rcx,7FFFFFFF
 
jg        near ptr M02_L01
 
call      00007FF9B2E61E60
 
mov       r12,rax
 
cmp       [r12],r12b
 
lea       rax,[r12+0C]
 
mov       [rsp+20],rax
 
mov       rcx,rax
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rbx,[rsp+20]
 
lea       rcx,[rbx+r13*2]
 
lea       rdx,[rsi+0C]
 
mov       r8d,r14d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
add       ebp,r14d
 
movsxd    r8,ebp
 
lea       rcx,[rbx+r8*2]
 
lea       rdx,[rdi+0C]
 
mov       r8d,r15d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r12
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M02_L00
  
mov       rcx,rbx
 
mov       rdx,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FF9B2E66B08]; System.String.Concat(System.String, System.String)
 
M02_L01
  
call      qword ptr [7FF9B305EF40]
 
int       3
 
M02_L02
  
mov       rcx,rsi
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FF9B2E66B08]; System.String.Concat(System.String, System.String)
 
M02_L03
  
mov       rcx,rbx
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FF9B2E66B08]; System.String.Concat(System.String, System.String)
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M03_L03
 
test      r8b,18
 
jne       short M03_L01
 
test      r8b,4
 
je        short M03_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M03_L00
  
ret
 
M03_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M03_L00
 
M03_L02
  
test      r8,r8
 
je        short M03_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M03_L06
 
jmp       short M03_L00
 
M03_L03
  
cmp       r8,40
 
ja        short M03_L07
 
M03_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M03_L11
 
M03_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M03_L00
 
M03_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M03_L00
 
M03_L07
  
cmp       r8,800
 
ja        short M03_L10
 
mov       r9,r8
 
shr       r9,6
 
M03_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M03_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M03_L04
 
jmp       short M03_L05
 
M03_L09
  
cmp       rcx,rdx
 
je        near ptr M03_L00
 
M03_L10
  
jmp       qword ptr [7FF9B2F15B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M03_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M03_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M04_L03
 
cmp       r8d,edi
 
jl        near ptr M04_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M04_L01
 
test      r8,r8
 
je        near ptr M04_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M04_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M04_L00
  
cmp       ebp,r10d
 
ja        near ptr M04_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M04_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FF9B30FCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M04_L07
 
M04_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M04_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33AF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F1D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L04
  
test      eax,eax
 
jne       short M04_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M04_L00
 
M04_L05
  
call      qword ptr [7FF9B305E9D0]
 
int       3
 
M04_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M04_L02
 
M04_L07
  
call      qword ptr [7FF9B305E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M05_L03
 
call      00007FF9B2E61E60
 
mov       rsi,rax
 
M05_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M05_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M05_L02
 
cmp       [rdx+8],r8d
 
jb        short M05_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M05_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M05_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33AF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F1D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L03
  
mov       rax,164A24B0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CultureInfo.InitializeUserDefaultCulture()
push      rsi
 
push      rbx
 
sub       rsp,28
 
call      qword ptr [7FF9D5F541F8]
 
mov       rbx,rax
 
lea       rsi,[rbx+3E0]
 
call      qword ptr [7FF9D5F67B80]
 
mov       rdx,rax
 
mov       rcx,rsi
 
xor       r8d,r8d
 
call      qword ptr [7FF9D5F68B78]; System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
mov       rax,[rbx+3E0]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ToDelimitedStringComparison()
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+288]
 
mov       ebp,[rdi+44]
 
xor       r14d,r14d
 
jmp       near ptr M00_L08
 
M00_L00
  
mov       ecx,[rsi+1C]
 
mov       edx,[rsi+18]
 
add       ecx,edx
 
test      ecx,ecx
 
jle       short M00_L02
 
mov       ecx,edx
 
mov       rax,[rsi+8]
 
cmp       [rax+8],ecx
 
jbe       short M00_L01
 
mov       ecx,ecx
 
mov       word ptr [rax+rcx*2+10],2C
 
inc       edx
 
mov       [rsi+18],edx
 
jmp       short M00_L02
 
M00_L01
  
mov       rcx,rsi
 
mov       edx,2C
 
call      qword ptr [7FF9B30DC3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M00_L02
  
mov       rcx,r15
 
mov       r8,r13
 
mov       rdx,2709C430210
 
call      qword ptr [7FF9B2E46B20]; System.String.Concat(System.String, System.String, System.String)
 
mov       r15,rax
 
mov       r8,gs:[58]
 
mov       r8,[r8+38]
 
cmp       dword ptr [r8+190],4
 
jl        near ptr M00_L12
 
mov       r8,[r8+198]
 
mov       r8,[r8+20]
 
test      r8,r8
 
je        near ptr M00_L12
 
mov       rax,[r8]
 
add       rax,10
 
M00_L03
  
cmp       qword ptr [rax+8],0
 
jne       short M00_L04
 
mov       r8,2300A400438
 
cmp       qword ptr [r8],0
 
jne       short M00_L04
 
mov       r8,2300A400418
 
cmp       qword ptr [r8],0
 
je        near ptr M00_L13
 
M00_L04
  
cmp       [r15],r15b
 
lea       rdx,[r15+0C]
 
mov       r15d,[r15+8]
 
test      r15d,r15d
 
je        short M00_L08
 
mov       r8,[rsi+8]
 
mov       r13d,[rsi+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M00_L07
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jle       short M00_L06
 
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L05
  
add       r15d,r13d
 
mov       [rsi+18],r15d
 
jmp       short M00_L08
 
M00_L06
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M00_L05
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L05
 
M00_L07
  
mov       rcx,rsi
 
mov       r8d,r15d
 
call      qword ptr [7FF9B30DCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L08
  
cmp       ebp,[rdi+44]
 
jne       short M00_L11
 
M00_L09
  
mov       ecx,[rdi+38]
 
cmp       r14d,ecx
 
jb        short M00_L10
 
mov       rcx,rsi
 
call      qword ptr [7FF9B30CE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       ecx,ecx
 
mov       [rbx+8],rcx
 
add       rsp,30
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L10
  
mov       rcx,[rdi+10]
 
lea       edx,[r14+1]
 
mov       r15d,edx
 
cmp       r14d,[rcx+8]
 
jae       short M00_L14
 
mov       edx,r14d
 
lea       rdx,[rdx+rdx*2]
 
lea       rcx,[rcx+rdx*8+10]
 
cmp       dword ptr [rcx+14],0FFFFFFFF
 
mov       r14d,r15d
 
jl        short M00_L09
 
mov       r15,[rcx]
 
mov       r13,[rcx+8]
 
jmp       near ptr M00_L00
 
M00_L11
  
call      qword ptr [7FF9B303EFE8]
 
int       3
 
M00_L12
  
mov       ecx,4
 
call      CORINFO_HELP_GETSHARED_GCTHREADSTATIC_BASE_NOCTOR_OPTIMIZED
 
jmp       near ptr M00_L03
 
M00_L13
  
call      qword ptr [7FF9B2FE4030]; System.Globalization.CultureInfo.InitializeUserDefaultCulture()
 
jmp       near ptr M00_L04
 
M00_L14
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.AppendWithExpansion(Char)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
mov       rcx,rbx
 
mov       edx,1
 
call      qword ptr [7FF9B30DCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
mov       rax,[rbx+8]
 
cmp       dword ptr [rax+8],0
 
jbe       short M01_L00
 
mov       [rax+10],si
 
inc       dword ptr [rbx+18]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L00
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.Concat(System.String, System.String, System.String)
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,r8
 
test      rbx,rbx
 
je        near ptr M02_L02
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        near ptr M02_L02
 
test      rsi,rsi
 
je        near ptr M02_L03
 
mov       r14d,[rsi+8]
 
test      r14d,r14d
 
je        near ptr M02_L03
 
test      rdi,rdi
 
je        near ptr M02_L00
 
mov       r15d,[rdi+8]
 
test      r15d,r15d
 
je        near ptr M02_L00
 
mov       r13d,ebp
 
mov       ecx,r14d
 
add       rcx,r13
 
mov       eax,r15d
 
add       rcx,rax
 
cmp       rcx,7FFFFFFF
 
jg        near ptr M02_L01
 
call      00007FF9B2E41E60
 
mov       r12,rax
 
cmp       [r12],r12b
 
lea       rax,[r12+0C]
 
mov       [rsp+20],rax
 
mov       rcx,rax
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rbx,[rsp+20]
 
lea       rcx,[rbx+r13*2]
 
lea       rdx,[rsi+0C]
 
mov       r8d,r14d
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
add       ebp,r14d
 
movsxd    r8,ebp
 
lea       rcx,[rbx+r8*2]
 
lea       rdx,[rdi+0C]
 
mov       r8d,r15d
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r12
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M02_L00
  
mov       rcx,rbx
 
mov       rdx,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FF9B2E46B08]; System.String.Concat(System.String, System.String)
 
M02_L01
  
call      qword ptr [7FF9B303EF40]
 
int       3
 
M02_L02
  
mov       rcx,rsi
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FF9B2E46B08]; System.String.Concat(System.String, System.String)
 
M02_L03
  
mov       rcx,rbx
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FF9B2E46B08]; System.String.Concat(System.String, System.String)
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M03_L03
 
test      r8b,18
 
jne       short M03_L01
 
test      r8b,4
 
je        short M03_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M03_L00
  
ret
 
M03_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M03_L00
 
M03_L02
  
test      r8,r8
 
je        short M03_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M03_L06
 
jmp       short M03_L00
 
M03_L03
  
cmp       r8,40
 
ja        short M03_L07
 
M03_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M03_L11
 
M03_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M03_L00
 
M03_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M03_L00
 
M03_L07
  
cmp       r8,800
 
ja        short M03_L10
 
mov       r9,r8
 
shr       r9,6
 
M03_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M03_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M03_L04
 
jmp       short M03_L05
 
M03_L09
  
cmp       rcx,rdx
 
je        near ptr M03_L00
 
M03_L10
  
jmp       qword ptr [7FF9B2EF5B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M03_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M03_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M04_L03
 
cmp       r8d,edi
 
jl        near ptr M04_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M04_L01
 
test      r8,r8
 
je        near ptr M04_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M04_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M04_L00
  
cmp       ebp,r10d
 
ja        near ptr M04_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M04_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FF9B30DCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M04_L07
 
M04_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M04_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2CF4000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B338F6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2EFD470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L04
  
test      eax,eax
 
jne       short M04_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M04_L00
 
M04_L05
  
call      qword ptr [7FF9B303E9D0]
 
int       3
 
M04_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M04_L02
 
M04_L07
  
call      qword ptr [7FF9B303E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M05_L03
 
call      00007FF9B2E41E60
 
mov       rsi,rax
 
M05_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M05_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M05_L02
 
cmp       [rdx+8],r8d
 
jb        short M05_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M05_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M05_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2CF4000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B338F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2EFD470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L03
  
mov       rax,2709C430008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CultureInfo.InitializeUserDefaultCulture()
push      rsi
 
push      rbx
 
sub       rsp,28
 
call      qword ptr [7FF9D5F541F8]
 
mov       rbx,rax
 
lea       rsi,[rbx+3E0]
 
call      qword ptr [7FF9D5F67B80]
 
mov       rdx,rax
 
mov       rcx,rsi
 
xor       r8d,r8d
 
call      qword ptr [7FF9D5F68B78]; System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
mov       rax,[rbx+3E0]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ToDelimitedStringComparison()
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+288]
 
mov       ebp,[rdi+44]
 
xor       r14d,r14d
 
jmp       near ptr M00_L08
 
M00_L00
  
mov       ecx,[rsi+1C]
 
mov       edx,[rsi+18]
 
add       ecx,edx
 
test      ecx,ecx
 
jle       short M00_L02
 
mov       ecx,edx
 
mov       rax,[rsi+8]
 
cmp       [rax+8],ecx
 
jbe       short M00_L01
 
mov       ecx,ecx
 
mov       word ptr [rax+rcx*2+10],2C
 
inc       edx
 
mov       [rsi+18],edx
 
jmp       short M00_L02
 
M00_L01
  
mov       rcx,rsi
 
mov       edx,2C
 
call      qword ptr [7FF9B30EC3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M00_L02
  
mov       rcx,r15
 
mov       r8,r13
 
mov       rdx,3369A1A0210
 
call      qword ptr [7FF9B2E56B20]; System.String.Concat(System.String, System.String, System.String)
 
mov       r15,rax
 
mov       r8,gs:[58]
 
mov       r8,[r8+40]
 
cmp       dword ptr [r8+190],4
 
jl        near ptr M00_L12
 
mov       r8,[r8+198]
 
mov       r8,[r8+20]
 
test      r8,r8
 
je        near ptr M00_L12
 
mov       rax,[r8]
 
add       rax,10
 
M00_L03
  
cmp       qword ptr [rax+8],0
 
jne       short M00_L04
 
mov       r8,2F608400438
 
cmp       qword ptr [r8],0
 
jne       short M00_L04
 
mov       r8,2F608400418
 
cmp       qword ptr [r8],0
 
je        near ptr M00_L13
 
M00_L04
  
cmp       [r15],r15b
 
lea       rdx,[r15+0C]
 
mov       r15d,[r15+8]
 
test      r15d,r15d
 
je        short M00_L08
 
mov       r8,[rsi+8]
 
mov       r13d,[rsi+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M00_L07
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jle       short M00_L06
 
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L05
  
add       r15d,r13d
 
mov       [rsi+18],r15d
 
jmp       short M00_L08
 
M00_L06
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M00_L05
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L05
 
M00_L07
  
mov       rcx,rsi
 
mov       r8d,r15d
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L08
  
cmp       ebp,[rdi+44]
 
jne       short M00_L11
 
M00_L09
  
mov       ecx,[rdi+38]
 
cmp       r14d,ecx
 
jb        short M00_L10
 
mov       rcx,rsi
 
call      qword ptr [7FF9B30DE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       ecx,ecx
 
mov       [rbx+8],rcx
 
add       rsp,30
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L10
  
mov       rcx,[rdi+10]
 
lea       edx,[r14+1]
 
mov       r15d,edx
 
cmp       r14d,[rcx+8]
 
jae       short M00_L14
 
mov       edx,r14d
 
lea       rdx,[rdx+rdx*2]
 
lea       rcx,[rcx+rdx*8+10]
 
cmp       dword ptr [rcx+14],0FFFFFFFF
 
mov       r14d,r15d
 
jl        short M00_L09
 
mov       r15,[rcx]
 
mov       r13,[rcx+8]
 
jmp       near ptr M00_L00
 
M00_L11
  
call      qword ptr [7FF9B304EFE8]
 
int       3
 
M00_L12
  
mov       ecx,4
 
call      CORINFO_HELP_GETSHARED_GCTHREADSTATIC_BASE_NOCTOR_OPTIMIZED
 
jmp       near ptr M00_L03
 
M00_L13
  
call      qword ptr [7FF9B2FF4030]; System.Globalization.CultureInfo.InitializeUserDefaultCulture()
 
jmp       near ptr M00_L04
 
M00_L14
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.AppendWithExpansion(Char)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
mov       rcx,rbx
 
mov       edx,1
 
call      qword ptr [7FF9B30ECB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
mov       rax,[rbx+8]
 
cmp       dword ptr [rax+8],0
 
jbe       short M01_L00
 
mov       [rax+10],si
 
inc       dword ptr [rbx+18]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L00
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.Concat(System.String, System.String, System.String)
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,r8
 
test      rbx,rbx
 
je        near ptr M02_L02
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        near ptr M02_L02
 
test      rsi,rsi
 
je        near ptr M02_L03
 
mov       r14d,[rsi+8]
 
test      r14d,r14d
 
je        near ptr M02_L03
 
test      rdi,rdi
 
je        near ptr M02_L00
 
mov       r15d,[rdi+8]
 
test      r15d,r15d
 
je        near ptr M02_L00
 
mov       r13d,ebp
 
mov       ecx,r14d
 
add       rcx,r13
 
mov       eax,r15d
 
add       rcx,rax
 
cmp       rcx,7FFFFFFF
 
jg        near ptr M02_L01
 
call      00007FF9B2E51E60
 
mov       r12,rax
 
cmp       [r12],r12b
 
lea       rax,[r12+0C]
 
mov       [rsp+20],rax
 
mov       rcx,rax
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rbx,[rsp+20]
 
lea       rcx,[rbx+r13*2]
 
lea       rdx,[rsi+0C]
 
mov       r8d,r14d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
add       ebp,r14d
 
movsxd    r8,ebp
 
lea       rcx,[rbx+r8*2]
 
lea       rdx,[rdi+0C]
 
mov       r8d,r15d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r12
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M02_L00
  
mov       rcx,rbx
 
mov       rdx,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FF9B2E56B08]; System.String.Concat(System.String, System.String)
 
M02_L01
  
call      qword ptr [7FF9B304EF40]
 
int       3
 
M02_L02
  
mov       rcx,rsi
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FF9B2E56B08]; System.String.Concat(System.String, System.String)
 
M02_L03
  
mov       rcx,rbx
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FF9B2E56B08]; System.String.Concat(System.String, System.String)
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M03_L03
 
test      r8b,18
 
jne       short M03_L01
 
test      r8b,4
 
je        short M03_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M03_L00
  
ret
 
M03_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M03_L00
 
M03_L02
  
test      r8,r8
 
je        short M03_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M03_L06
 
jmp       short M03_L00
 
M03_L03
  
cmp       r8,40
 
ja        short M03_L07
 
M03_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M03_L11
 
M03_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M03_L00
 
M03_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M03_L00
 
M03_L07
  
cmp       r8,800
 
ja        short M03_L10
 
mov       r9,r8
 
shr       r9,6
 
M03_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M03_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M03_L04
 
jmp       short M03_L05
 
M03_L09
  
cmp       rcx,rdx
 
je        near ptr M03_L00
 
M03_L10
  
jmp       qword ptr [7FF9B2F05B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M03_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M03_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M04_L03
 
cmp       r8d,edi
 
jl        near ptr M04_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M04_L01
 
test      r8,r8
 
je        near ptr M04_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M04_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M04_L00
  
cmp       ebp,r10d
 
ja        near ptr M04_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M04_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FF9B30ECB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M04_L07
 
M04_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M04_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2D04000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B339F6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F0D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L04
  
test      eax,eax
 
jne       short M04_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M04_L00
 
M04_L05
  
call      qword ptr [7FF9B304E9D0]
 
int       3
 
M04_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M04_L02
 
M04_L07
  
call      qword ptr [7FF9B304E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M05_L03
 
call      00007FF9B2E51E60
 
mov       rsi,rax
 
M05_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M05_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M05_L02
 
cmp       [rdx+8],r8d
 
jb        short M05_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M05_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M05_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2D04000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B339F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F0D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L03
  
mov       rax,3369A1A0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CultureInfo.InitializeUserDefaultCulture()
push      rsi
 
push      rbx
 
sub       rsp,28
 
call      qword ptr [7FF9D5F541F8]
 
mov       rbx,rax
 
lea       rsi,[rbx+3E0]
 
call      qword ptr [7FF9D5F67B80]
 
mov       rdx,rax
 
mov       rcx,rsi
 
xor       r8d,r8d
 
call      qword ptr [7FF9D5F68B78]; System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
mov       rax,[rbx+3E0]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ToDelimitedStringComparison()
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+288]
 
mov       ebp,[rdi+44]
 
xor       r14d,r14d
 
jmp       near ptr M00_L08
 
M00_L00
  
mov       ecx,[rsi+1C]
 
mov       edx,[rsi+18]
 
add       ecx,edx
 
test      ecx,ecx
 
jle       short M00_L02
 
mov       ecx,edx
 
mov       rax,[rsi+8]
 
cmp       [rax+8],ecx
 
jbe       short M00_L01
 
mov       ecx,ecx
 
mov       word ptr [rax+rcx*2+10],2C
 
inc       edx
 
mov       [rsi+18],edx
 
jmp       short M00_L02
 
M00_L01
  
mov       rcx,rsi
 
mov       edx,2C
 
call      qword ptr [7FF9B30EC3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M00_L02
  
mov       rcx,r15
 
mov       r8,r13
 
mov       rdx,26C8ACB0210
 
call      qword ptr [7FF9B2E56B20]; System.String.Concat(System.String, System.String, System.String)
 
mov       r15,rax
 
mov       r8,gs:[58]
 
mov       r8,[r8+30]
 
cmp       dword ptr [r8+190],4
 
jl        near ptr M00_L12
 
mov       r8,[r8+198]
 
mov       r8,[r8+20]
 
test      r8,r8
 
je        near ptr M00_L12
 
mov       rax,[r8]
 
add       rax,10
 
M00_L03
  
cmp       qword ptr [rax+8],0
 
jne       short M00_L04
 
mov       r8,22BF9000438
 
cmp       qword ptr [r8],0
 
jne       short M00_L04
 
mov       r8,22BF9000418
 
cmp       qword ptr [r8],0
 
je        near ptr M00_L13
 
M00_L04
  
cmp       [r15],r15b
 
lea       rdx,[r15+0C]
 
mov       r15d,[r15+8]
 
test      r15d,r15d
 
je        short M00_L08
 
mov       r8,[rsi+8]
 
mov       r13d,[rsi+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M00_L07
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jle       short M00_L06
 
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L05
  
add       r15d,r13d
 
mov       [rsi+18],r15d
 
jmp       short M00_L08
 
M00_L06
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M00_L05
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L05
 
M00_L07
  
mov       rcx,rsi
 
mov       r8d,r15d
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L08
  
cmp       ebp,[rdi+44]
 
jne       short M00_L11
 
M00_L09
  
mov       ecx,[rdi+38]
 
cmp       r14d,ecx
 
jb        short M00_L10
 
mov       rcx,rsi
 
call      qword ptr [7FF9B30DE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       ecx,ecx
 
mov       [rbx+8],rcx
 
add       rsp,30
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L10
  
mov       rcx,[rdi+10]
 
lea       edx,[r14+1]
 
mov       r15d,edx
 
cmp       r14d,[rcx+8]
 
jae       short M00_L14
 
mov       edx,r14d
 
lea       rdx,[rdx+rdx*2]
 
lea       rcx,[rcx+rdx*8+10]
 
cmp       dword ptr [rcx+14],0FFFFFFFF
 
mov       r14d,r15d
 
jl        short M00_L09
 
mov       r15,[rcx]
 
mov       r13,[rcx+8]
 
jmp       near ptr M00_L00
 
M00_L11
  
call      qword ptr [7FF9B304EFE8]
 
int       3
 
M00_L12
  
mov       ecx,4
 
call      CORINFO_HELP_GETSHARED_GCTHREADSTATIC_BASE_NOCTOR_OPTIMIZED
 
jmp       near ptr M00_L03
 
M00_L13
  
call      qword ptr [7FF9B2FF4030]; System.Globalization.CultureInfo.InitializeUserDefaultCulture()
 
jmp       near ptr M00_L04
 
M00_L14
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.AppendWithExpansion(Char)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
mov       rcx,rbx
 
mov       edx,1
 
call      qword ptr [7FF9B30ECB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
mov       rax,[rbx+8]
 
cmp       dword ptr [rax+8],0
 
jbe       short M01_L00
 
mov       [rax+10],si
 
inc       dword ptr [rbx+18]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L00
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.Concat(System.String, System.String, System.String)
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,r8
 
test      rbx,rbx
 
je        near ptr M02_L02
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        near ptr M02_L02
 
test      rsi,rsi
 
je        near ptr M02_L03
 
mov       r14d,[rsi+8]
 
test      r14d,r14d
 
je        near ptr M02_L03
 
test      rdi,rdi
 
je        near ptr M02_L00
 
mov       r15d,[rdi+8]
 
test      r15d,r15d
 
je        near ptr M02_L00
 
mov       r13d,ebp
 
mov       ecx,r14d
 
add       rcx,r13
 
mov       eax,r15d
 
add       rcx,rax
 
cmp       rcx,7FFFFFFF
 
jg        near ptr M02_L01
 
call      00007FF9B2E51E60
 
mov       r12,rax
 
cmp       [r12],r12b
 
lea       rax,[r12+0C]
 
mov       [rsp+20],rax
 
mov       rcx,rax
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rbx,[rsp+20]
 
lea       rcx,[rbx+r13*2]
 
lea       rdx,[rsi+0C]
 
mov       r8d,r14d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
add       ebp,r14d
 
movsxd    r8,ebp
 
lea       rcx,[rbx+r8*2]
 
lea       rdx,[rdi+0C]
 
mov       r8d,r15d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r12
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M02_L00
  
mov       rcx,rbx
 
mov       rdx,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FF9B2E56B08]; System.String.Concat(System.String, System.String)
 
M02_L01
  
call      qword ptr [7FF9B304EF40]
 
int       3
 
M02_L02
  
mov       rcx,rsi
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FF9B2E56B08]; System.String.Concat(System.String, System.String)
 
M02_L03
  
mov       rcx,rbx
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FF9B2E56B08]; System.String.Concat(System.String, System.String)
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M03_L03
 
test      r8b,18
 
jne       short M03_L01
 
test      r8b,4
 
je        short M03_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M03_L00
  
ret
 
M03_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M03_L00
 
M03_L02
  
test      r8,r8
 
je        short M03_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M03_L06
 
jmp       short M03_L00
 
M03_L03
  
cmp       r8,40
 
ja        short M03_L07
 
M03_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M03_L11
 
M03_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M03_L00
 
M03_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M03_L00
 
M03_L07
  
cmp       r8,800
 
ja        short M03_L10
 
mov       r9,r8
 
shr       r9,6
 
M03_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M03_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M03_L04
 
jmp       short M03_L05
 
M03_L09
  
cmp       rcx,rdx
 
je        near ptr M03_L00
 
M03_L10
  
jmp       qword ptr [7FF9B2F05B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M03_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M03_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M04_L03
 
cmp       r8d,edi
 
jl        near ptr M04_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M04_L01
 
test      r8,r8
 
je        near ptr M04_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M04_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M04_L00
  
cmp       ebp,r10d
 
ja        near ptr M04_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M04_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FF9B30ECB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M04_L07
 
M04_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M04_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2D04000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B339F6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F0D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L04
  
test      eax,eax
 
jne       short M04_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M04_L00
 
M04_L05
  
call      qword ptr [7FF9B304E9D0]
 
int       3
 
M04_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M04_L02
 
M04_L07
  
call      qword ptr [7FF9B304E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M05_L03
 
call      00007FF9B2E51E60
 
mov       rsi,rax
 
M05_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M05_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M05_L02
 
cmp       [rdx+8],r8d
 
jb        short M05_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M05_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M05_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2D04000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B339F5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F0D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L03
  
mov       rax,26C8ACB0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CultureInfo.InitializeUserDefaultCulture()
push      rsi
 
push      rbx
 
sub       rsp,28
 
call      qword ptr [7FF9D5F541F8]
 
mov       rbx,rax
 
lea       rsi,[rbx+3E0]
 
call      qword ptr [7FF9D5F67B80]
 
mov       rdx,rax
 
mov       rcx,rsi
 
xor       r8d,r8d
 
call      qword ptr [7FF9D5F68B78]; System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
mov       rax,[rbx+3E0]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.ToDelimitedStringComparison()
push      r15
 
push      r14
 
push      r13
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Text.StringBuilder
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
mov       dword ptr [rsi+20],7FFFFFFF
 
mov       rcx,offset MT_System.Char[]
 
mov       edx,10
 
call      CORINFO_HELP_NEWARR_1_VC
 
lea       rcx,[rsi+8]
 
mov       rdx,rax
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rdi,[rbx+288]
 
mov       ebp,[rdi+44]
 
xor       r14d,r14d
 
jmp       near ptr M00_L08
 
M00_L00
  
mov       ecx,[rsi+1C]
 
mov       edx,[rsi+18]
 
add       ecx,edx
 
test      ecx,ecx
 
jle       short M00_L02
 
mov       ecx,edx
 
mov       rax,[rsi+8]
 
cmp       [rax+8],ecx
 
jbe       short M00_L01
 
mov       ecx,ecx
 
mov       word ptr [rax+rcx*2+10],2C
 
inc       edx
 
mov       [rsi+18],edx
 
jmp       short M00_L02
 
M00_L01
  
mov       rcx,rsi
 
mov       edx,2C
 
call      qword ptr [7FF9B30FC3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M00_L02
  
mov       rcx,r15
 
mov       r8,r13
 
mov       rdx,216464F0210
 
call      qword ptr [7FF9B2E66B20]; System.String.Concat(System.String, System.String, System.String)
 
mov       r15,rax
 
mov       r8,gs:[58]
 
mov       r8,[r8+38]
 
cmp       dword ptr [r8+190],4
 
jl        near ptr M00_L12
 
mov       r8,[r8+198]
 
mov       r8,[r8+20]
 
test      r8,r8
 
je        near ptr M00_L12
 
mov       rax,[r8]
 
add       rax,10
 
M00_L03
  
cmp       qword ptr [rax+8],0
 
jne       short M00_L04
 
mov       r8,1D5B4800438
 
cmp       qword ptr [r8],0
 
jne       short M00_L04
 
mov       r8,1D5B4800418
 
cmp       qword ptr [r8],0
 
je        near ptr M00_L13
 
M00_L04
  
cmp       [r15],r15b
 
lea       rdx,[r15+0C]
 
mov       r15d,[r15+8]
 
test      r15d,r15d
 
je        short M00_L08
 
mov       r8,[rsi+8]
 
mov       r13d,[rsi+18]
 
lea       ecx,[r15+r13]
 
cmp       ecx,[r8+8]
 
ja        short M00_L07
 
movsxd    rcx,r13d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r15d,2
 
jle       short M00_L06
 
movsxd    r8,r15d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M00_L05
  
add       r15d,r13d
 
mov       [rsi+18],r15d
 
jmp       short M00_L08
 
M00_L06
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r15d,2
 
jne       short M00_L05
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M00_L05
 
M00_L07
  
mov       rcx,rsi
 
mov       r8d,r15d
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M00_L08
  
cmp       ebp,[rdi+44]
 
jne       short M00_L11
 
M00_L09
  
mov       ecx,[rdi+38]
 
cmp       r14d,ecx
 
jb        short M00_L10
 
mov       rcx,rsi
 
call      qword ptr [7FF9B30EE778]; System.Text.StringBuilder.ToString()
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       ecx,ecx
 
mov       [rbx+8],rcx
 
add       rsp,30
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M00_L10
  
mov       rcx,[rdi+10]
 
lea       edx,[r14+1]
 
mov       r15d,edx
 
cmp       r14d,[rcx+8]
 
jae       short M00_L14
 
mov       edx,r14d
 
lea       rdx,[rdx+rdx*2]
 
lea       rcx,[rcx+rdx*8+10]
 
cmp       dword ptr [rcx+14],0FFFFFFFF
 
mov       r14d,r15d
 
jl        short M00_L09
 
mov       r15,[rcx]
 
mov       r13,[rcx+8]
 
jmp       near ptr M00_L00
 
M00_L11
  
call      qword ptr [7FF9B305EFE8]
 
int       3
 
M00_L12
  
mov       ecx,4
 
call      CORINFO_HELP_GETSHARED_GCTHREADSTATIC_BASE_NOCTOR_OPTIMIZED
 
jmp       near ptr M00_L03
 
M00_L13
  
call      qword ptr [7FF9B3004030]; System.Globalization.CultureInfo.InitializeUserDefaultCulture()
 
jmp       near ptr M00_L04
 
M00_L14
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.Text.StringBuilder.AppendWithExpansion(Char)
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       esi,edx
 
mov       rcx,rbx
 
mov       edx,1
 
call      qword ptr [7FF9B30FCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
mov       rax,[rbx+8]
 
cmp       dword ptr [rax+8],0
 
jbe       short M01_L00
 
mov       [rax+10],si
 
inc       dword ptr [rbx+18]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M01_L00
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
System.String.Concat(System.String, System.String, System.String)
push      r15
 
push      r14
 
push      r13
 
push      r12
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       rdi,r8
 
test      rbx,rbx
 
je        near ptr M02_L02
 
mov       ebp,[rbx+8]
 
test      ebp,ebp
 
je        near ptr M02_L02
 
test      rsi,rsi
 
je        near ptr M02_L03
 
mov       r14d,[rsi+8]
 
test      r14d,r14d
 
je        near ptr M02_L03
 
test      rdi,rdi
 
je        near ptr M02_L00
 
mov       r15d,[rdi+8]
 
test      r15d,r15d
 
je        near ptr M02_L00
 
mov       r13d,ebp
 
mov       ecx,r14d
 
add       rcx,r13
 
mov       eax,r15d
 
add       rcx,rax
 
cmp       rcx,7FFFFFFF
 
jg        near ptr M02_L01
 
call      00007FF9B2E61E60
 
mov       r12,rax
 
cmp       [r12],r12b
 
lea       rax,[r12+0C]
 
mov       [rsp+20],rax
 
mov       rcx,rax
 
lea       rdx,[rbx+0C]
 
mov       r8d,ebp
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rbx,[rsp+20]
 
lea       rcx,[rbx+r13*2]
 
lea       rdx,[rsi+0C]
 
mov       r8d,r14d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
add       ebp,r14d
 
movsxd    r8,ebp
 
lea       rcx,[rbx+r8*2]
 
lea       rdx,[rdi+0C]
 
mov       r8d,r15d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rax,r12
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
ret
 
M02_L00
  
mov       rcx,rbx
 
mov       rdx,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FF9B2E66B08]; System.String.Concat(System.String, System.String)
 
M02_L01
  
call      qword ptr [7FF9B305EF40]
 
int       3
 
M02_L02
  
mov       rcx,rsi
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FF9B2E66B08]; System.String.Concat(System.String, System.String)
 
M02_L03
  
mov       rcx,rbx
 
mov       rdx,rdi
 
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r12
 
pop       r13
 
pop       r14
 
pop       r15
 
jmp       qword ptr [7FF9B2E66B08]; System.String.Concat(System.String, System.String)
 
System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
vzeroupper
 
mov       rax,rcx
 
sub       rax,rdx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
mov       rax,rdx
 
sub       rax,rcx
 
cmp       rax,r8
 
jb        near ptr M03_L09
 
lea       rax,[rdx+r8]
 
lea       r10,[rcx+r8]
 
cmp       r8,10
 
ja        short M03_L03
 
test      r8b,18
 
jne       short M03_L01
 
test      r8b,4
 
je        short M03_L02
 
mov       r8d,[rdx]
 
mov       [rcx],r8d
 
mov       edx,[rax-4]
 
mov       [r10-4],edx
 
M03_L00
  
ret
 
M03_L01
  
mov       r8,[rdx]
 
mov       [rcx],r8
 
mov       rdx,[rax-8]
 
mov       [r10-8],rdx
 
jmp       short M03_L00
 
M03_L02
  
test      r8,r8
 
je        short M03_L00
 
movzx     edx,byte ptr [rdx]
 
mov       [rcx],dl
 
test      r8b,2
 
jne       short M03_L06
 
jmp       short M03_L00
 
M03_L03
  
cmp       r8,40
 
ja        short M03_L07
 
M03_L04
  
vmovups   xmm0,[rdx]
 
vmovups   [rcx],xmm0
 
cmp       r8,20
 
ja        short M03_L11
 
M03_L05
  
vmovups   xmm0,[rax-10]
 
vmovups   [r10-10],xmm0
 
jmp       short M03_L00
 
M03_L06
  
movsx     r8,word ptr [rax-2]
 
mov       [r10-2],r8w
 
jmp       short M03_L00
 
M03_L07
  
cmp       r8,800
 
ja        short M03_L10
 
mov       r9,r8
 
shr       r9,6
 
M03_L08
  
vmovdqu   ymm0,ymmword ptr [rdx]
 
vmovdqu   ymmword ptr [rcx],ymm0
 
vmovdqu   ymm0,ymmword ptr [rdx+20]
 
vmovdqu   ymmword ptr [rcx+20],ymm0
 
add       rcx,40
 
add       rdx,40
 
dec       r9
 
jne       short M03_L08
 
and       r8,3F
 
cmp       r8,10
 
ja        short M03_L04
 
jmp       short M03_L05
 
M03_L09
  
cmp       rcx,rdx
 
je        near ptr M03_L00
 
M03_L10
  
jmp       qword ptr [7FF9B2F15B90]; System.Buffer._Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M03_L11
  
vmovups   xmm0,[rdx+10]
 
vmovups   [rcx+10],xmm0
 
cmp       r8,30
 
jbe       short M03_L05
 
vmovups   xmm0,[rdx+20]
 
vmovups   [rcx+20],xmm0
 
jmp       short M03_L05
 
System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
push      r14
 
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,20
 
mov       rbx,rcx
 
mov       rsi,rdx
 
mov       edi,r8d
 
mov       r8d,[rbx+1C]
 
mov       eax,[rbx+18]
 
add       r8d,eax
 
add       r8d,edi
 
cmp       r8d,[rbx+20]
 
jg        near ptr M04_L03
 
cmp       r8d,edi
 
jl        near ptr M04_L03
 
mov       r8,[rbx+8]
 
mov       ebp,[r8+8]
 
sub       ebp,eax
 
test      ebp,ebp
 
jle       short M04_L01
 
test      r8,r8
 
je        near ptr M04_L04
 
mov       r10d,[r8+8]
 
cmp       r10d,eax
 
jb        near ptr M04_L05
 
mov       ecx,eax
 
lea       rcx,[r8+rcx*2+10]
 
sub       r10d,eax
 
M04_L00
  
cmp       ebp,r10d
 
ja        near ptr M04_L07
 
mov       r8d,ebp
 
add       r8,r8
 
mov       rdx,rsi
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
mov       [rbx+18],ecx
 
M04_L01
  
sub       edi,ebp
 
mov       rcx,rbx
 
mov       edx,edi
 
call      qword ptr [7FF9B30FCB58]; System.Text.StringBuilder.ExpandByABlock(Int32)
 
movsxd    r8,ebp
 
lea       rdx,[rsi+r8*2]
 
mov       r8,[rbx+8]
 
test      r8,r8
 
je        near ptr M04_L06
 
lea       rcx,[r8+10]
 
mov       r14d,[r8+8]
 
cmp       edi,r14d
 
ja        near ptr M04_L07
 
M04_L02
  
mov       r8d,edi
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
mov       [rbx+18],edi
 
add       rsp,20
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
pop       r14
 
ret
 
M04_L03
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18791
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33AF6C0]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F1D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M04_L04
  
test      eax,eax
 
jne       short M04_L05
 
xor       ecx,ecx
 
xor       r10d,r10d
 
jmp       near ptr M04_L00
 
M04_L05
  
call      qword ptr [7FF9B305E9D0]
 
int       3
 
M04_L06
  
xor       ecx,ecx
 
xor       r14d,r14d
 
cmp       edi,r14d
 
jbe       short M04_L02
 
M04_L07
  
call      qword ptr [7FF9B305E9E8]
 
int       3
 
System.Text.StringBuilder.ToString()
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbx,rcx
 
mov       ecx,[rbx+1C]
 
add       ecx,[rbx+18]
 
je        near ptr M05_L03
 
call      00007FF9B2E61E60
 
mov       rsi,rax
 
M05_L00
  
mov       r8d,[rbx+18]
 
test      r8d,r8d
 
jle       short M05_L01
 
mov       rdx,[rbx+8]
 
mov       ecx,[rbx+1C]
 
lea       eax,[r8+rcx]
 
cmp       eax,[rsi+8]
 
ja        short M05_L02
 
cmp       [rdx+8],r8d
 
jb        short M05_L02
 
movsxd    rcx,ecx
 
lea       rcx,[rsi+rcx*2+0C]
 
add       rdx,10
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M05_L01
  
mov       rbx,[rbx+10]
 
test      rbx,rbx
 
jne       short M05_L00
 
mov       rax,rsi
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
M05_L02
  
mov       rcx,offset MT_System.ArgumentOutOfRangeException
 
call      CORINFO_HELP_NEWSFAST
 
mov       rbx,rax
 
mov       ecx,18761
 
mov       rdx,7FF9B2D14000
 
call      CORINFO_HELP_STRCNS
 
mov       rsi,rax
 
call      qword ptr [7FF9B33AF5E8]
 
mov       r8,rax
 
mov       rdx,rsi
 
mov       rcx,rbx
 
call      qword ptr [7FF9B2F1D470]
 
mov       rcx,rbx
 
call      CORINFO_HELP_THROW
 
M05_L03
  
mov       rax,216464F0008
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 
System.Globalization.CultureInfo.InitializeUserDefaultCulture()
push      rsi
 
push      rbx
 
sub       rsp,28
 
call      qword ptr [7FF9D5F541F8]
 
mov       rbx,rax
 
lea       rsi,[rbx+3E0]
 
call      qword ptr [7FF9D5F67B80]
 
mov       rdx,rax
 
mov       rcx,rsi
 
xor       r8d,r8d
 
call      qword ptr [7FF9D5F68B78]; System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
mov       rax,[rbx+3E0]
 
add       rsp,28
 
pop       rbx
 
pop       rsi
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpace()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,[rbx+290]
 
call      qword ptr [7FF9B3897D80]; DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < args.Length; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < args.Length - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = sb.Append(ControlChars.Space);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+70]
 
xor       eax,eax
 
mov       [rbp-40],rax
 
mov       [rbp-30],rax
 
mov       [rbp-50],rsp
 
mov       rbx,rcx
 
test      rbx,rbx
 
je        near ptr M01_L12
 
mov       esi,[rbx+8]
 
test      esi,esi
 
je        near ptr M01_L12
 
mov       rcx,107C8008B58
 
mov       rdi,[rcx]
 
mov       rcx,[rdi+20]
 
mov       [rbp-30],rcx
 
cmp       qword ptr [rbp-30],0
 
je        near ptr M01_L13
 
lea       rcx,[rdi+20]
 
mov       r8,[rbp-30]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-30]
 
jne       near ptr M01_L13
 
M01_L00
  
mov       r14,[rbp-30]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-30],rcx
 
cmp       [r14],r14b
 
mov       rcx,r14
 
xor       edx,edx
 
call      qword ptr [7FF9B30EC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-38],r14
 
xor       r15d,r15d
 
test      esi,esi
 
jle       near ptr M01_L08
 
M01_L02
  
mov       r8d,r15d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L04
 
mov       rcx,[r14+8]
 
mov       eax,[r14+18]
 
lea       edi,[rax+r8]
 
cmp       edi,[rcx+8]
 
ja        short M01_L07
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L03
  
mov       [r14+18],edi
 
M01_L04
  
mov       ecx,esi
 
sub       ecx,1
 
jo        short M01_L09
 
cmp       ecx,r15d
 
jle       short M01_L06
 
mov       ecx,[r14+18]
 
mov       eax,ecx
 
mov       rdx,[r14+8]
 
mov       r8d,[rdx+8]
 
cmp       r8d,eax
 
jbe       short M01_L10
 
mov       word ptr [rdx+rax*2+10],20
 
inc       ecx
 
mov       [r14+18],ecx
 
jmp       short M01_L06
 
M01_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L03
 
M01_L06
  
add       r15d,1
 
jo        short M01_L09
 
cmp       esi,r15d
 
jg        near ptr M01_L02
 
jmp       short M01_L08
 
M01_L07
  
mov       rcx,r14
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L04
 
M01_L08
  
mov       rcx,r14
 
call      qword ptr [7FF9B30DE778]; System.Text.StringBuilder.ToString()
 
mov       [rbp-40],rax
 
jmp       short M01_L11
 
M01_L09
  
call      CORINFO_HELP_OVERFLOW
 
M01_L10
  
mov       rcx,r14
 
mov       edx,20
 
call      qword ptr [7FF9B30EC3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
jmp       short M01_L06
 
M01_L11
  
mov       rcx,rsp
 
call      M01_L15
 
nop
 
mov       rax,[rbp-40]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L12
  
mov       rax,14859CD0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rcx,[rdi+18]
 
lea       rdx,[rbp-30]
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35BEF28]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L14
 
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
jmp       near ptr M01_L00
 
M01_L14
  
mov       rax,[rdi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r14,rax
 
jmp       near ptr M01_L01
 
M01_L15
  
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+70]
 
mov       rcx,107C8008B58
 
mov       rdi,[rcx]
 
mov       r14,[rdi+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r14+18],rcx
 
jne       short M01_L16
 
mov       rbx,[rbp-38]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r14+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L20
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FF9B30EC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L17
 
M01_L16
  
mov       rdx,[rbp-38]
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
test      eax,eax
 
mov       rbx,[rbp-38]
 
je        short M01_L20
 
M01_L17
  
cmp       qword ptr [rdi+20],0
 
jne       short M01_L18
 
lea       rcx,[rdi+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L20
 
M01_L18
  
lea       rcx,[rdi+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rdi+28]
 
jg        short M01_L19
 
mov       rcx,[rdi+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35BEEF8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L20
 
M01_L19
  
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
M01_L20
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpace()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,[rbx+290]
 
call      qword ptr [7FF9B3887D80]; DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < args.Length; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < args.Length - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = sb.Append(ControlChars.Space);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+70]
 
xor       eax,eax
 
mov       [rbp-40],rax
 
mov       [rbp-30],rax
 
mov       [rbp-50],rsp
 
mov       rbx,rcx
 
test      rbx,rbx
 
je        near ptr M01_L12
 
mov       esi,[rbx+8]
 
test      esi,esi
 
je        near ptr M01_L12
 
mov       rcx,1DD30008B58
 
mov       rdi,[rcx]
 
mov       rcx,[rdi+20]
 
mov       [rbp-30],rcx
 
cmp       qword ptr [rbp-30],0
 
je        near ptr M01_L13
 
lea       rcx,[rdi+20]
 
mov       r8,[rbp-30]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-30]
 
jne       near ptr M01_L13
 
M01_L00
  
mov       r14,[rbp-30]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-30],rcx
 
cmp       [r14],r14b
 
mov       rcx,r14
 
xor       edx,edx
 
call      qword ptr [7FF9B30DC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-38],r14
 
xor       r15d,r15d
 
test      esi,esi
 
jle       near ptr M01_L09
 
M01_L02
  
mov       r8d,r15d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r14+8]
 
mov       eax,[r14+18]
 
lea       edi,[rax+r8]
 
cmp       edi,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L03
  
mov       [r14+18],edi
 
jmp       short M01_L06
 
M01_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L03
 
M01_L05
  
mov       rcx,r14
 
call      qword ptr [7FF9B30DCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,esi
 
sub       ecx,1
 
jo        short M01_L10
 
cmp       ecx,r15d
 
jle       short M01_L08
 
mov       ecx,[r14+18]
 
mov       eax,ecx
 
mov       rdx,[r14+8]
 
mov       r8d,[rdx+8]
 
cmp       r8d,eax
 
jbe       short M01_L07
 
mov       word ptr [rdx+rax*2+10],20
 
inc       ecx
 
mov       [r14+18],ecx
 
jmp       short M01_L08
 
M01_L07
  
mov       rcx,r14
 
mov       edx,20
 
call      qword ptr [7FF9B30DC3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M01_L08
  
add       r15d,1
 
jo        short M01_L10
 
cmp       esi,r15d
 
jg        near ptr M01_L02
 
M01_L09
  
mov       rcx,r14
 
call      qword ptr [7FF9B30CE778]; System.Text.StringBuilder.ToString()
 
mov       [rbp-40],rax
 
jmp       short M01_L11
 
M01_L10
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L11
  
mov       rcx,rsp
 
call      M01_L15
 
nop
 
mov       rax,[rbp-40]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L12
  
mov       rax,21DC1DC0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rcx,[rdi+18]
 
lea       rdx,[rbp-30]
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35AEF28]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L14
 
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
jmp       near ptr M01_L00
 
M01_L14
  
mov       rax,[rdi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r14,rax
 
jmp       near ptr M01_L01
 
M01_L15
  
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+70]
 
mov       rcx,1DD30008B58
 
mov       rdi,[rcx]
 
mov       r14,[rdi+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r14+18],rcx
 
jne       short M01_L16
 
mov       rbx,[rbp-38]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r14+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L20
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FF9B30DC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L17
 
M01_L16
  
mov       rdx,[rbp-38]
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
test      eax,eax
 
mov       rbx,[rbp-38]
 
je        short M01_L20
 
M01_L17
  
cmp       qword ptr [rdi+20],0
 
jne       short M01_L18
 
lea       rcx,[rdi+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L20
 
M01_L18
  
lea       rcx,[rdi+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rdi+28]
 
jg        short M01_L19
 
mov       rcx,[rdi+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35AEEF8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L20
 
M01_L19
  
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
M01_L20
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpace()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,[rbx+290]
 
call      qword ptr [7FF9B38B7D80]; DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < args.Length; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < args.Length - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = sb.Append(ControlChars.Space);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+70]
 
xor       eax,eax
 
mov       [rbp-40],rax
 
mov       [rbp-30],rax
 
mov       [rbp-50],rsp
 
mov       rbx,rcx
 
test      rbx,rbx
 
je        near ptr M01_L12
 
mov       esi,[rbx+8]
 
test      esi,esi
 
je        near ptr M01_L12
 
mov       rcx,154A9008B58
 
mov       rdi,[rcx]
 
mov       rcx,[rdi+20]
 
mov       [rbp-30],rcx
 
cmp       qword ptr [rbp-30],0
 
je        near ptr M01_L13
 
lea       rcx,[rdi+20]
 
mov       r8,[rbp-30]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-30]
 
jne       near ptr M01_L13
 
M01_L00
  
mov       r14,[rbp-30]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-30],rcx
 
cmp       [r14],r14b
 
mov       rcx,r14
 
xor       edx,edx
 
call      qword ptr [7FF9B310C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-38],r14
 
xor       r15d,r15d
 
test      esi,esi
 
jle       near ptr M01_L09
 
M01_L02
  
mov       r8d,r15d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r14+8]
 
mov       eax,[r14+18]
 
lea       edi,[rax+r8]
 
cmp       edi,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L03
  
mov       [r14+18],edi
 
jmp       short M01_L06
 
M01_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L03
 
M01_L05
  
mov       rcx,r14
 
call      qword ptr [7FF9B310CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,esi
 
sub       ecx,1
 
jo        short M01_L10
 
cmp       ecx,r15d
 
jle       short M01_L08
 
mov       ecx,[r14+18]
 
mov       eax,ecx
 
mov       rdx,[r14+8]
 
mov       r8d,[rdx+8]
 
cmp       r8d,eax
 
jbe       short M01_L07
 
mov       word ptr [rdx+rax*2+10],20
 
inc       ecx
 
mov       [r14+18],ecx
 
jmp       short M01_L08
 
M01_L07
  
mov       rcx,r14
 
mov       edx,20
 
call      qword ptr [7FF9B310C3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M01_L08
  
add       r15d,1
 
jo        short M01_L10
 
cmp       esi,r15d
 
jg        near ptr M01_L02
 
M01_L09
  
mov       rcx,r14
 
call      qword ptr [7FF9B30FE778]; System.Text.StringBuilder.ToString()
 
mov       [rbp-40],rax
 
jmp       short M01_L11
 
M01_L10
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L11
  
mov       rcx,rsp
 
call      M01_L15
 
nop
 
mov       rax,[rbp-40]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L12
  
mov       rax,1953B160008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rcx,[rdi+18]
 
lea       rdx,[rbp-30]
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35DEF28]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L14
 
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
jmp       near ptr M01_L00
 
M01_L14
  
mov       rax,[rdi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r14,rax
 
jmp       near ptr M01_L01
 
M01_L15
  
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+70]
 
mov       rcx,154A9008B58
 
mov       rdi,[rcx]
 
mov       r14,[rdi+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r14+18],rcx
 
jne       short M01_L16
 
mov       rbx,[rbp-38]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r14+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L20
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FF9B310C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L17
 
M01_L16
  
mov       rdx,[rbp-38]
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
test      eax,eax
 
mov       rbx,[rbp-38]
 
je        short M01_L20
 
M01_L17
  
cmp       qword ptr [rdi+20],0
 
jne       short M01_L18
 
lea       rcx,[rdi+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L20
 
M01_L18
  
lea       rcx,[rdi+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rdi+28]
 
jg        short M01_L19
 
mov       rcx,[rdi+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35DEEF8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L20
 
M01_L19
  
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
M01_L20
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpace()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,[rbx+290]
 
call      qword ptr [7FF9B38B7D80]; DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < args.Length; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < args.Length - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = sb.Append(ControlChars.Space);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+70]
 
xor       eax,eax
 
mov       [rbp-40],rax
 
mov       [rbp-30],rax
 
mov       [rbp-50],rsp
 
mov       rbx,rcx
 
test      rbx,rbx
 
je        near ptr M01_L12
 
mov       esi,[rbx+8]
 
test      esi,esi
 
je        near ptr M01_L12
 
mov       rcx,175AD008B58
 
mov       rdi,[rcx]
 
mov       rcx,[rdi+20]
 
mov       [rbp-30],rcx
 
cmp       qword ptr [rbp-30],0
 
je        near ptr M01_L13
 
lea       rcx,[rdi+20]
 
mov       r8,[rbp-30]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-30]
 
jne       near ptr M01_L13
 
M01_L00
  
mov       r14,[rbp-30]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-30],rcx
 
cmp       [r14],r14b
 
mov       rcx,r14
 
xor       edx,edx
 
call      qword ptr [7FF9B310C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-38],r14
 
xor       r15d,r15d
 
test      esi,esi
 
jle       near ptr M01_L09
 
M01_L02
  
mov       r8d,r15d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r14+8]
 
mov       eax,[r14+18]
 
lea       edi,[rax+r8]
 
cmp       edi,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L03
  
mov       [r14+18],edi
 
jmp       short M01_L06
 
M01_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L03
 
M01_L05
  
mov       rcx,r14
 
call      qword ptr [7FF9B310CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,esi
 
sub       ecx,1
 
jo        short M01_L10
 
cmp       ecx,r15d
 
jle       short M01_L08
 
mov       ecx,[r14+18]
 
mov       eax,ecx
 
mov       rdx,[r14+8]
 
mov       r8d,[rdx+8]
 
cmp       r8d,eax
 
jbe       short M01_L07
 
mov       word ptr [rdx+rax*2+10],20
 
inc       ecx
 
mov       [r14+18],ecx
 
jmp       short M01_L08
 
M01_L07
  
mov       rcx,r14
 
mov       edx,20
 
call      qword ptr [7FF9B310C3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M01_L08
  
add       r15d,1
 
jo        short M01_L10
 
cmp       esi,r15d
 
jg        near ptr M01_L02
 
M01_L09
  
mov       rcx,r14
 
call      qword ptr [7FF9B30FE778]; System.Text.StringBuilder.ToString()
 
mov       [rbp-40],rax
 
jmp       short M01_L11
 
M01_L10
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L11
  
mov       rcx,rsp
 
call      M01_L15
 
nop
 
mov       rax,[rbp-40]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L12
  
mov       rax,1B63EDB0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rcx,[rdi+18]
 
lea       rdx,[rbp-30]
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35DEC10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L14
 
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
jmp       near ptr M01_L00
 
M01_L14
  
mov       rax,[rdi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r14,rax
 
jmp       near ptr M01_L01
 
M01_L15
  
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+70]
 
mov       rcx,175AD008B58
 
mov       rdi,[rcx]
 
mov       r14,[rdi+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r14+18],rcx
 
jne       short M01_L16
 
mov       rbx,[rbp-38]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r14+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L20
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FF9B310C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L17
 
M01_L16
  
mov       rdx,[rbp-38]
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
test      eax,eax
 
mov       rbx,[rbp-38]
 
je        short M01_L20
 
M01_L17
  
cmp       qword ptr [rdi+20],0
 
jne       short M01_L18
 
lea       rcx,[rdi+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L20
 
M01_L18
  
lea       rcx,[rdi+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rdi+28]
 
jg        short M01_L19
 
mov       rcx,[rdi+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35DEBE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L20
 
M01_L19
  
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
M01_L20
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpace()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,[rbx+290]
 
call      qword ptr [7FF9B38BD218]; DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < args.Length; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < args.Length - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = sb.Append(ControlChars.Space);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+70]
 
xor       eax,eax
 
mov       [rbp-40],rax
 
mov       [rbp-30],rax
 
mov       [rbp-50],rsp
 
mov       rbx,rcx
 
test      rbx,rbx
 
je        near ptr M01_L12
 
mov       esi,[rbx+8]
 
test      esi,esi
 
je        near ptr M01_L12
 
mov       rcx,2127EC08B58
 
mov       rdi,[rcx]
 
mov       rcx,[rdi+20]
 
mov       [rbp-30],rcx
 
cmp       qword ptr [rbp-30],0
 
je        near ptr M01_L13
 
lea       rcx,[rdi+20]
 
mov       r8,[rbp-30]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-30]
 
jne       near ptr M01_L13
 
M01_L00
  
mov       r14,[rbp-30]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-30],rcx
 
cmp       [r14],r14b
 
mov       rcx,r14
 
xor       edx,edx
 
call      qword ptr [7FF9B310C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-38],r14
 
xor       r15d,r15d
 
test      esi,esi
 
jle       near ptr M01_L08
 
M01_L02
  
mov       r8d,r15d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L04
 
mov       rcx,[r14+8]
 
mov       eax,[r14+18]
 
lea       edi,[rax+r8]
 
cmp       edi,[rcx+8]
 
ja        short M01_L07
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L03
  
mov       [r14+18],edi
 
M01_L04
  
mov       ecx,esi
 
sub       ecx,1
 
jo        short M01_L09
 
cmp       ecx,r15d
 
jle       short M01_L06
 
mov       ecx,[r14+18]
 
mov       eax,ecx
 
mov       rdx,[r14+8]
 
mov       r8d,[rdx+8]
 
cmp       r8d,eax
 
jbe       short M01_L10
 
mov       word ptr [rdx+rax*2+10],20
 
inc       ecx
 
mov       [r14+18],ecx
 
jmp       short M01_L06
 
M01_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L03
 
M01_L06
  
add       r15d,1
 
jo        short M01_L09
 
cmp       esi,r15d
 
jg        near ptr M01_L02
 
jmp       short M01_L08
 
M01_L07
  
mov       rcx,r14
 
call      qword ptr [7FF9B310CA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L04
 
M01_L08
  
mov       rcx,r14
 
call      qword ptr [7FF9B30FE778]; System.Text.StringBuilder.ToString()
 
mov       [rbp-40],rax
 
jmp       short M01_L11
 
M01_L09
  
call      CORINFO_HELP_OVERFLOW
 
M01_L10
  
mov       rcx,r14
 
mov       edx,20
 
call      qword ptr [7FF9B310C3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
jmp       short M01_L06
 
M01_L11
  
mov       rcx,rsp
 
call      M01_L15
 
nop
 
mov       rax,[rbp-40]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L12
  
mov       rax,25310B80008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rcx,[rdi+18]
 
lea       rdx,[rbp-30]
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35DEF28]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L14
 
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
jmp       near ptr M01_L00
 
M01_L14
  
mov       rax,[rdi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r14,rax
 
jmp       near ptr M01_L01
 
M01_L15
  
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+70]
 
mov       rcx,2127EC08B58
 
mov       rdi,[rcx]
 
mov       r14,[rdi+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r14+18],rcx
 
jne       short M01_L16
 
mov       rbx,[rbp-38]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r14+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L20
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FF9B310C1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L17
 
M01_L16
  
mov       rdx,[rbp-38]
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
test      eax,eax
 
mov       rbx,[rbp-38]
 
je        short M01_L20
 
M01_L17
  
cmp       qword ptr [rdi+20],0
 
jne       short M01_L18
 
lea       rcx,[rdi+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L20
 
M01_L18
  
lea       rcx,[rdi+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rdi+28]
 
jg        short M01_L19
 
mov       rcx,[rdi+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35DEEF8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L20
 
M01_L19
  
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
M01_L20
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpace()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,[rbx+290]
 
call      qword ptr [7FF9B388D218]; DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < args.Length; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < args.Length - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = sb.Append(ControlChars.Space);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+70]
 
xor       eax,eax
 
mov       [rbp-40],rax
 
mov       [rbp-30],rax
 
mov       [rbp-50],rsp
 
mov       rbx,rcx
 
test      rbx,rbx
 
je        near ptr M01_L12
 
mov       esi,[rbx+8]
 
test      esi,esi
 
je        near ptr M01_L12
 
mov       rcx,272EF808B58
 
mov       rdi,[rcx]
 
mov       rcx,[rdi+20]
 
mov       [rbp-30],rcx
 
cmp       qword ptr [rbp-30],0
 
je        near ptr M01_L13
 
lea       rcx,[rdi+20]
 
mov       r8,[rbp-30]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-30]
 
jne       near ptr M01_L13
 
M01_L00
  
mov       r14,[rbp-30]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-30],rcx
 
cmp       [r14],r14b
 
mov       rcx,r14
 
xor       edx,edx
 
call      qword ptr [7FF9B30DC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-38],r14
 
xor       r15d,r15d
 
test      esi,esi
 
jle       near ptr M01_L08
 
M01_L02
  
mov       r8d,r15d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L04
 
mov       rcx,[r14+8]
 
mov       eax,[r14+18]
 
lea       edi,[rax+r8]
 
cmp       edi,[rcx+8]
 
ja        short M01_L07
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L03
  
mov       [r14+18],edi
 
M01_L04
  
mov       ecx,esi
 
sub       ecx,1
 
jo        short M01_L09
 
cmp       ecx,r15d
 
jle       short M01_L06
 
mov       ecx,[r14+18]
 
mov       eax,ecx
 
mov       rdx,[r14+8]
 
mov       r8d,[rdx+8]
 
cmp       r8d,eax
 
jbe       short M01_L10
 
mov       word ptr [rdx+rax*2+10],20
 
inc       ecx
 
mov       [r14+18],ecx
 
jmp       short M01_L06
 
M01_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L03
 
M01_L06
  
add       r15d,1
 
jo        short M01_L09
 
cmp       esi,r15d
 
jg        near ptr M01_L02
 
jmp       short M01_L08
 
M01_L07
  
mov       rcx,r14
 
call      qword ptr [7FF9B30DCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L04
 
M01_L08
  
mov       rcx,r14
 
call      qword ptr [7FF9B30CE778]; System.Text.StringBuilder.ToString()
 
mov       [rbp-40],rax
 
jmp       short M01_L11
 
M01_L09
  
call      CORINFO_HELP_OVERFLOW
 
M01_L10
  
mov       rcx,r14
 
mov       edx,20
 
call      qword ptr [7FF9B30DC3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
jmp       short M01_L06
 
M01_L11
  
mov       rcx,rsp
 
call      M01_L15
 
nop
 
mov       rax,[rbp-40]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L12
  
mov       rax,2B381700008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rcx,[rdi+18]
 
lea       rdx,[rbp-30]
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35AEFA0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L14
 
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
jmp       near ptr M01_L00
 
M01_L14
  
mov       rax,[rdi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r14,rax
 
jmp       near ptr M01_L01
 
M01_L15
  
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+70]
 
mov       rcx,272EF808B58
 
mov       rdi,[rcx]
 
mov       r14,[rdi+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r14+18],rcx
 
jne       short M01_L16
 
mov       rbx,[rbp-38]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r14+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L20
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FF9B30DC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L17
 
M01_L16
  
mov       rdx,[rbp-38]
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
test      eax,eax
 
mov       rbx,[rbp-38]
 
je        short M01_L20
 
M01_L17
  
cmp       qword ptr [rdi+20],0
 
jne       short M01_L18
 
lea       rcx,[rdi+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L20
 
M01_L18
  
lea       rcx,[rdi+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rdi+28]
 
jg        short M01_L19
 
mov       rcx,[rdi+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35AEF70]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L20
 
M01_L19
  
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
M01_L20
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpace()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,[rbx+290]
 
call      qword ptr [7FF9B388D218]; DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < args.Length; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < args.Length - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = sb.Append(ControlChars.Space);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+70]
 
xor       eax,eax
 
mov       [rbp-40],rax
 
mov       [rbp-30],rax
 
mov       [rbp-50],rsp
 
mov       rbx,rcx
 
test      rbx,rbx
 
je        near ptr M01_L12
 
mov       esi,[rbx+8]
 
test      esi,esi
 
je        near ptr M01_L12
 
mov       rcx,29A7B408B58
 
mov       rdi,[rcx]
 
mov       rcx,[rdi+20]
 
mov       [rbp-30],rcx
 
cmp       qword ptr [rbp-30],0
 
je        near ptr M01_L13
 
lea       rcx,[rdi+20]
 
mov       r8,[rbp-30]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-30]
 
jne       near ptr M01_L13
 
M01_L00
  
mov       r14,[rbp-30]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-30],rcx
 
cmp       [r14],r14b
 
mov       rcx,r14
 
xor       edx,edx
 
call      qword ptr [7FF9B30DC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-38],r14
 
xor       r15d,r15d
 
test      esi,esi
 
jle       near ptr M01_L08
 
M01_L02
  
mov       r8d,r15d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L04
 
mov       rcx,[r14+8]
 
mov       eax,[r14+18]
 
lea       edi,[rax+r8]
 
cmp       edi,[rcx+8]
 
ja        short M01_L07
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L03
  
mov       [r14+18],edi
 
M01_L04
  
mov       ecx,esi
 
sub       ecx,1
 
jo        short M01_L09
 
cmp       ecx,r15d
 
jle       short M01_L06
 
mov       ecx,[r14+18]
 
mov       eax,ecx
 
mov       rdx,[r14+8]
 
mov       r8d,[rdx+8]
 
cmp       r8d,eax
 
jbe       short M01_L10
 
mov       word ptr [rdx+rax*2+10],20
 
inc       ecx
 
mov       [r14+18],ecx
 
jmp       short M01_L06
 
M01_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L03
 
M01_L06
  
add       r15d,1
 
jo        short M01_L09
 
cmp       esi,r15d
 
jg        near ptr M01_L02
 
jmp       short M01_L08
 
M01_L07
  
mov       rcx,r14
 
call      qword ptr [7FF9B30DCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L04
 
M01_L08
  
mov       rcx,r14
 
call      qword ptr [7FF9B30CE778]; System.Text.StringBuilder.ToString()
 
mov       [rbp-40],rax
 
jmp       short M01_L11
 
M01_L09
  
call      CORINFO_HELP_OVERFLOW
 
M01_L10
  
mov       rcx,r14
 
mov       edx,20
 
call      qword ptr [7FF9B30DC3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
jmp       short M01_L06
 
M01_L11
  
mov       rcx,rsp
 
call      M01_L15
 
nop
 
mov       rax,[rbp-40]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L12
  
mov       rax,2DB0D2A0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rcx,[rdi+18]
 
lea       rdx,[rbp-30]
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35AEF28]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L14
 
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
jmp       near ptr M01_L00
 
M01_L14
  
mov       rax,[rdi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r14,rax
 
jmp       near ptr M01_L01
 
M01_L15
  
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+70]
 
mov       rcx,29A7B408B58
 
mov       rdi,[rcx]
 
mov       r14,[rdi+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r14+18],rcx
 
jne       short M01_L16
 
mov       rbx,[rbp-38]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r14+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L20
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FF9B30DC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L17
 
M01_L16
  
mov       rdx,[rbp-38]
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
test      eax,eax
 
mov       rbx,[rbp-38]
 
je        short M01_L20
 
M01_L17
  
cmp       qword ptr [rdi+20],0
 
jne       short M01_L18
 
lea       rcx,[rdi+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L20
 
M01_L18
  
lea       rcx,[rdi+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rdi+28]
 
jg        short M01_L19
 
mov       rcx,[rdi+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35AEEF8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L20
 
M01_L19
  
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
M01_L20
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.CombineWithSpace()
push      rbx
 
sub       rsp,30
 
xor       eax,eax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,[rbx+290]
 
call      qword ptr [7FF9B38AD218]; DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,30
 
pop       rbx
 
ret
 
DotNetTips.Spargine.Core.FastStringBuilder.CombineWithSpace(System.String[])
		if (args == null || args.Length == 0)
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			for (var index = 0; index < args.Length; index++)
			     ^^^^^^^^^^^^^
 
				_ = sb.Append(args[index]);
				^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
				if (index < args.Length - 1)
				^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
					_ = sb.Append(ControlChars.Space);
					^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+70]
 
xor       eax,eax
 
mov       [rbp-40],rax
 
mov       [rbp-30],rax
 
mov       [rbp-50],rsp
 
mov       rbx,rcx
 
test      rbx,rbx
 
je        near ptr M01_L12
 
mov       esi,[rbx+8]
 
test      esi,esi
 
je        near ptr M01_L12
 
mov       rcx,1B318C06B60
 
mov       rdi,[rcx]
 
mov       rcx,[rdi+20]
 
mov       [rbp-30],rcx
 
cmp       qword ptr [rbp-30],0
 
je        near ptr M01_L13
 
lea       rcx,[rdi+20]
 
mov       r8,[rbp-30]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-30]
 
jne       near ptr M01_L13
 
M01_L00
  
mov       r14,[rbp-30]
 
M01_L01
  
xor       ecx,ecx
 
mov       [rbp-30],rcx
 
cmp       [r14],r14b
 
mov       rcx,r14
 
xor       edx,edx
 
call      qword ptr [7FF9B30FC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-38],r14
 
xor       r15d,r15d
 
test      esi,esi
 
jle       near ptr M01_L09
 
M01_L02
  
mov       r8d,r15d
 
mov       r8,[rbx+r8*8+10]
 
test      r8,r8
 
je        short M01_L06
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L06
 
mov       rcx,[r14+8]
 
mov       eax,[r14+18]
 
lea       edi,[rax+r8]
 
cmp       edi,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L03
  
mov       [r14+18],edi
 
jmp       short M01_L06
 
M01_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L03
 
M01_L05
  
mov       rcx,r14
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L06
  
mov       ecx,esi
 
sub       ecx,1
 
jo        short M01_L10
 
cmp       ecx,r15d
 
jle       short M01_L08
 
mov       ecx,[r14+18]
 
mov       eax,ecx
 
mov       rdx,[r14+8]
 
mov       r8d,[rdx+8]
 
cmp       r8d,eax
 
jbe       short M01_L07
 
mov       word ptr [rdx+rax*2+10],20
 
inc       ecx
 
mov       [r14+18],ecx
 
jmp       short M01_L08
 
M01_L07
  
mov       rcx,r14
 
mov       edx,20
 
call      qword ptr [7FF9B30FC3F0]; System.Text.StringBuilder.AppendWithExpansion(Char)
 
M01_L08
  
add       r15d,1
 
jo        short M01_L10
 
cmp       esi,r15d
 
jg        near ptr M01_L02
 
M01_L09
  
mov       rcx,r14
 
call      qword ptr [7FF9B30EE778]; System.Text.StringBuilder.ToString()
 
mov       [rbp-40],rax
 
jmp       short M01_L11
 
M01_L10
  
call      CORINFO_HELP_OVERFLOW
 
int       3
 
M01_L11
  
mov       rcx,rsp
 
call      M01_L15
 
nop
 
mov       rax,[rbp-40]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L12
  
mov       rax,1F3A6AF0008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M01_L13
  
mov       rcx,[rdi+18]
 
lea       rdx,[rbp-30]
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35CEF28]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M01_L14
 
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
jmp       near ptr M01_L00
 
M01_L14
  
mov       rax,[rdi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       r14,rax
 
jmp       near ptr M01_L01
 
M01_L15
  
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+70]
 
mov       rcx,1B318C06B60
 
mov       rdi,[rcx]
 
mov       r14,[rdi+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [r14+18],rcx
 
jne       short M01_L16
 
mov       rbx,[rbp-38]
 
mov       rcx,[rbx+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rbx+1C]
 
mov       rdx,[r14+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M01_L20
 
mov       rcx,rbx
 
xor       edx,edx
 
call      qword ptr [7FF9B30FC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M01_L17
 
M01_L16
  
mov       rdx,[rbp-38]
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
test      eax,eax
 
mov       rbx,[rbp-38]
 
je        short M01_L20
 
M01_L17
  
cmp       qword ptr [rdi+20],0
 
jne       short M01_L18
 
lea       rcx,[rdi+20]
 
mov       rdx,rbx
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M01_L20
 
M01_L18
  
lea       rcx,[rdi+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rdi+28]
 
jg        short M01_L19
 
mov       rcx,[rdi+18]
 
mov       rdx,rbx
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35CEEF8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M01_L20
 
M01_L19
  
add       rdi,2C
 
lock dec  dword ptr [rdi]
 
M01_L20
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformAction()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Action
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rsi+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
mov       [rsi+18],rcx
 
mov       [rsp+30],rsi
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FF9B3897690]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
M00_L00
  
call      qword ptr [7FF9B2E541F8]
 
int       3
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       short M01_L03
 
M01_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M01_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M01_L02
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L02
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L01
  
mov       [rbx+18],ebp
 
M01_L02
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        short M01_L00
 
M01_L03
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M01_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L05
  
mov       rcx,rbx
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L02
 
M01_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,48
 
lea       rbp,[rsp+70]
 
xor       eax,eax
 
mov       [rbp-40],rax
 
mov       [rbp-30],rax
 
mov       [rbp-50],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M02_L10
 
mov       rcx,1CFE0808B58
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-30],rcx
 
cmp       qword ptr [rbp-30],0
 
je        near ptr M02_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-30]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-30]
 
jne       near ptr M02_L11
 
M02_L00
  
mov       rdi,[rbp-30]
 
M02_L01
  
xor       ecx,ecx
 
mov       [rbp-30],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FF9B30EC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-38],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M02_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L09
 
M02_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M02_L04
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M02_L07
 
lea       rdx,[r8+0C]
 
mov       r14d,[r8+8]
 
test      r14d,r14d
 
je        short M02_L07
 
mov       r8,[rdi+8]
 
mov       r15d,[rdi+18]
 
lea       ecx,[r15+r14]
 
cmp       ecx,[r8+8]
 
ja        short M02_L06
 
movsxd    rcx,r15d
 
lea       rcx,[r8+rcx*2+10]
 
cmp       r14d,2
 
jle       short M02_L05
 
movsxd    r8,r14d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L03
  
add       r14d,r15d
 
mov       [rdi+18],r14d
 
jmp       short M02_L07
 
M02_L04
  
call      CORINFO_HELP_RNGCHKFAIL
 
M02_L05
  
movzx     r8d,word ptr [rdx]
 
mov       [rcx],r8w
 
cmp       r14d,2
 
jne       short M02_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L03
 
M02_L06
  
mov       rcx,rdi
 
mov       r8d,r14d
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M02_L07
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        near ptr M02_L02
 
jmp       short M02_L09
 
M02_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M02_L09
  
mov       rcx,rdi
 
call      qword ptr [7FF9B30DE778]; System.Text.StringBuilder.ToString()
 
mov       [rbp-40],rax
 
mov       rcx,rsp
 
call      M02_L13
 
nop
 
mov       rax,[rbp-40]
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L10
  
mov       rax,21072660008
 
add       rsp,48
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 
M02_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-30]
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35BF390]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M02_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M02_L00
 
M02_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M02_L01
 
M02_L13
  
push      rbp
 
push      r15
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,28
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+70]
 
mov       rcx,1CFE0808B58
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M02_L14
 
mov       rdi,[rbp-38]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M02_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FF9B30EC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M02_L15
 
M02_L14
  
mov       rdi,[rbp-38]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M02_L18
 
M02_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M02_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M02_L18
 
M02_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M02_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35BF360]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M02_L18
 
M02_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M02_L18
  
add       rsp,28
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       r15
 
pop       rbp
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformAction()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Action
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rsi+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
mov       [rsi+18],rcx
 
mov       [rsp+30],rsi
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FF9B38A7E10]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
M00_L00
  
call      qword ptr [7FF9B2E641F8]
 
int       3
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       short M01_L03
 
M01_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M01_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M01_L02
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L02
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L01
  
mov       [rbx+18],ebp
 
M01_L02
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        short M01_L00
 
M01_L03
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M01_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L05
  
mov       rcx,rbx
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L02
 
M01_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M02_L10
 
mov       rcx,2149A808B58
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M02_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M02_L11
 
M02_L00
  
mov       rdi,[rbp-28]
 
M02_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FF9B30FC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M02_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L09
 
M02_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M02_L05
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M02_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L04
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M02_L07
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L06
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L03
  
mov       [rdi+18],r14d
 
M02_L04
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        short M02_L02
 
jmp       short M02_L09
 
M02_L05
  
call      CORINFO_HELP_RNGCHKFAIL
 
M02_L06
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L03
 
M02_L07
  
mov       rcx,rdi
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M02_L04
 
M02_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M02_L09
  
mov       rcx,rdi
 
call      qword ptr [7FF9B30EE778]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M02_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L10
  
mov       rax,2552C7A0008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35CEC10]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M02_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M02_L00
 
M02_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M02_L01
 
M02_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,2149A808B58
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M02_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M02_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FF9B30FC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M02_L15
 
M02_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M02_L18
 
M02_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M02_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M02_L18
 
M02_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M02_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35CEBE0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M02_L18
 
M02_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M02_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformAction()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Action
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rsi+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
mov       [rsi+18],rcx
 
mov       [rsp+30],rsi
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FF9B3897690]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
M00_L00
  
call      qword ptr [7FF9B2E541F8]
 
int       3
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M01_L05
 
M01_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M01_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M01_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L04
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M01_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L01
  
mov       [rbx+18],ebp
 
jmp       short M01_L04
 
M01_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        near ptr M01_L00
 
M01_L05
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M01_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M02_L10
 
mov       rcx,1EBC2008B58
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M02_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M02_L11
 
M02_L00
  
mov       rdi,[rbp-28]
 
M02_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FF9B30EC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M02_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L09
 
M02_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M02_L04
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M02_L07
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L07
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M02_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L03
  
mov       [rdi+18],r14d
 
jmp       short M02_L07
 
M02_L04
  
call      CORINFO_HELP_RNGCHKFAIL
 
M02_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L03
 
M02_L06
  
mov       rcx,rdi
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M02_L07
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        near ptr M02_L02
 
jmp       short M02_L09
 
M02_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M02_L09
  
mov       rcx,rdi
 
call      qword ptr [7FF9B30DE778]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M02_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L10
  
mov       rax,22C53E90008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35BEFA0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M02_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M02_L00
 
M02_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M02_L01
 
M02_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,1EBC2008B58
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M02_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M02_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FF9B30EC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M02_L15
 
M02_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M02_L18
 
M02_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M02_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M02_L18
 
M02_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M02_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35BEF70]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M02_L18
 
M02_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M02_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformAction()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Action
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rsi+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
mov       [rsi+18],rcx
 
mov       [rsp+30],rsi
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FF9B3887690]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
M00_L00
  
call      qword ptr [7FF9B2E441F8]
 
int       3
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       short M01_L03
 
M01_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M01_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M01_L02
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L02
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L01
  
mov       [rbx+18],ebp
 
M01_L02
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        short M01_L00
 
M01_L03
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M01_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L05
  
mov       rcx,rbx
 
call      qword ptr [7FF9B30DCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L02
 
M01_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M02_L10
 
mov       rcx,2534B008B58
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M02_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M02_L11
 
M02_L00
  
mov       rdi,[rbp-28]
 
M02_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FF9B30DC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M02_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L09
 
M02_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M02_L05
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M02_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L04
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M02_L07
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L06
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2EF5B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L03
  
mov       [rdi+18],r14d
 
M02_L04
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        short M02_L02
 
jmp       short M02_L09
 
M02_L05
  
call      CORINFO_HELP_RNGCHKFAIL
 
M02_L06
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L03
 
M02_L07
  
mov       rcx,rdi
 
call      qword ptr [7FF9B30DCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M02_L04
 
M02_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M02_L09
  
mov       rcx,rdi
 
call      qword ptr [7FF9B30CE778]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M02_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L10
  
mov       rax,293DCDD0008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35AEF28]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M02_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M02_L00
 
M02_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M02_L01
 
M02_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,2534B008B58
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M02_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M02_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FF9B30DC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M02_L15
 
M02_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M02_L18
 
M02_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M02_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M02_L18
 
M02_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M02_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35AEEF8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M02_L18
 
M02_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M02_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformAction()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Action
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rsi+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
mov       [rsi+18],rcx
 
mov       [rsp+30],rsi
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FF9B389D2A8]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
M00_L00
  
call      qword ptr [7FF9B2E541F8]
 
int       3
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       short M01_L03
 
M01_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M01_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M01_L02
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L02
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L01
  
mov       [rbx+18],ebp
 
M01_L02
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        short M01_L00
 
M01_L03
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M01_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L05
  
mov       rcx,rbx
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L02
 
M01_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M02_L10
 
mov       rcx,2747E008B58
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M02_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M02_L11
 
M02_L00
  
mov       rdi,[rbp-28]
 
M02_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FF9B30EC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M02_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L09
 
M02_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M02_L05
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M02_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L04
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M02_L07
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L06
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F05B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L03
  
mov       [rdi+18],r14d
 
M02_L04
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        short M02_L02
 
jmp       short M02_L09
 
M02_L05
  
call      CORINFO_HELP_RNGCHKFAIL
 
M02_L06
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L03
 
M02_L07
  
mov       rcx,rdi
 
call      qword ptr [7FF9B30ECA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M02_L04
 
M02_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M02_L09
  
mov       rcx,rdi
 
call      qword ptr [7FF9B30DE778]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M02_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L10
  
mov       rax,2B50FE40008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35BEFA0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M02_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M02_L00
 
M02_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M02_L01
 
M02_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,2747E008B58
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M02_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M02_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FF9B30EC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M02_L15
 
M02_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M02_L18
 
M02_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M02_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M02_L18
 
M02_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M02_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35BEF70]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M02_L18
 
M02_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M02_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformAction()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Action
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rsi+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
mov       [rsi+18],rcx
 
mov       [rsp+30],rsi
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FF9B38AD2A8]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
M00_L00
  
call      qword ptr [7FF9B2E641F8]
 
int       3
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M01_L05
 
M01_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M01_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M01_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L04
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M01_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L01
  
mov       [rbx+18],ebp
 
jmp       short M01_L04
 
M01_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        near ptr M01_L00
 
M01_L05
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M01_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M02_L10
 
mov       rcx,2696B008B58
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M02_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M02_L11
 
M02_L00
  
mov       rdi,[rbp-28]
 
M02_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FF9B30FC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M02_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L09
 
M02_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M02_L04
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M02_L07
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L07
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M02_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L03
  
mov       [rdi+18],r14d
 
jmp       short M02_L07
 
M02_L04
  
call      CORINFO_HELP_RNGCHKFAIL
 
M02_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L03
 
M02_L06
  
mov       rcx,rdi
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M02_L07
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        near ptr M02_L02
 
jmp       short M02_L09
 
M02_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M02_L09
  
mov       rcx,rdi
 
call      qword ptr [7FF9B30EE778]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M02_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L10
  
mov       rax,2A9FCF20008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35CEFA0]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M02_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M02_L00
 
M02_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M02_L01
 
M02_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,2696B008B58
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M02_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M02_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FF9B30FC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M02_L15
 
M02_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M02_L18
 
M02_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M02_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M02_L18
 
M02_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M02_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35CEF70]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M02_L18
 
M02_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M02_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformAction()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Action
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rsi+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
mov       [rsi+18],rcx
 
mov       [rsp+30],rsi
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FF9B38AD2A8]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
M00_L00
  
call      qword ptr [7FF9B2E641F8]
 
int       3
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M01_L05
 
M01_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M01_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M01_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L04
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M01_L03
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L02
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L01
  
mov       [rbx+18],ebp
 
jmp       short M01_L04
 
M01_L02
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L03
  
mov       rcx,rbx
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M01_L04
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        near ptr M01_L00
 
M01_L05
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M01_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M02_L10
 
mov       rcx,1A1D6406B60
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M02_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M02_L11
 
M02_L00
  
mov       rdi,[rbp-28]
 
M02_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FF9B30FC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M02_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L09
 
M02_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M02_L04
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M02_L07
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L07
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M02_L06
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L05
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F15B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L03
  
mov       [rdi+18],r14d
 
jmp       short M02_L07
 
M02_L04
  
call      CORINFO_HELP_RNGCHKFAIL
 
M02_L05
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L03
 
M02_L06
  
mov       rcx,rdi
 
call      qword ptr [7FF9B30FCA98]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
M02_L07
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        near ptr M02_L02
 
jmp       short M02_L09
 
M02_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M02_L09
  
mov       rcx,rdi
 
call      qword ptr [7FF9B30EE778]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M02_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L10
  
mov       rax,1E2643C0008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35CEF70]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M02_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M02_L00
 
M02_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M02_L01
 
M02_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,1A1D6406B60
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M02_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M02_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FF9B30FC1F8]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M02_L15
 
M02_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M02_L18
 
M02_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M02_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M02_L18
 
M02_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M02_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35CEF40]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M02_L18
 
M02_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M02_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 

.NET 8.0.18 (8.0.1825.31117), X64 RyuJIT AVX2

DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.PerformAction()
push      rsi
 
push      rbx
 
sub       rsp,38
 
xor       eax,eax
 
mov       [rsp+30],rax
 
mov       [rsp+28],rax
 
mov       rbx,rcx
 
mov       rcx,offset MT_System.Action
 
call      CORINFO_HELP_NEWSFAST
 
mov       rsi,rax
 
test      rbx,rbx
 
je        short M00_L00
 
lea       rcx,[rsi+8]
 
mov       rdx,rbx
 
call      CORINFO_HELP_ASSIGN_REF
 
mov       rcx,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
mov       [rsi+18],rcx
 
mov       [rsp+30],rsi
 
lea       rcx,[rsp+30]
 
call      qword ptr [7FF9B38BD2A8]; DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
 
mov       [rsp+28],rax
 
mov       rbx,[rbx+18]
 
mov       rdx,[rsp+28]
 
lea       rcx,[rbx+8]
 
call      CORINFO_HELP_ASSIGN_REF
 
xor       eax,eax
 
mov       [rbx+8],rax
 
add       rsp,38
 
pop       rbx
 
pop       rsi
 
ret
 
M00_L00
  
call      qword ptr [7FF9B2E741F8]
 
int       3
 
DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
push      rdi
 
push      rsi
 
push      rbp
 
push      rbx
 
sub       rsp,28
 
mov       rsi,rcx
 
mov       rbx,rdx
 
xor       edi,edi
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       short M01_L03
 
M01_L00
  
mov       r8,[rsi+290]
 
cmp       edi,[r8+8]
 
jae       near ptr M01_L06
 
mov       ecx,edi
 
mov       r8,[r8+rcx*8+10]
 
cmp       [rbx],bl
 
test      r8,r8
 
je        short M01_L02
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M01_L02
 
mov       rcx,[rbx+8]
 
mov       eax,[rbx+18]
 
lea       ebp,[rax+r8]
 
cmp       ebp,[rcx+8]
 
ja        short M01_L05
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M01_L04
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M01_L01
  
mov       [rbx+18],ebp
 
M01_L02
  
inc       edi
 
mov       rax,[rsi+290]
 
cmp       [rax+8],edi
 
jg        short M01_L00
 
M01_L03
  
add       rsp,28
 
pop       rbx
 
pop       rbp
 
pop       rsi
 
pop       rdi
 
ret
 
M01_L04
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M01_L01
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M01_L01
 
M01_L05
  
mov       rcx,rbx
 
call      qword ptr [7FF9B317D950]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M01_L02
 
M01_L06
  
call      CORINFO_HELP_RNGCHKFAIL
 
int       3
 
DotNetTips.Spargine.Core.FastStringBuilder.PerformAction(System.Action`1 ByRef)
		if (action is null)
		^^^^^^^^^^^^^^^^^^^
 
			return ControlChars.EmptyString;
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		var sb = _stringBuilderPool.Get().Clear();
		^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
			action.Invoke(sb);
			^^^^^^^^^^^^^^^^^^
 
			return sb.ToString();
			^^^^^^^^^^^^^^^^^^^^^
 
	}
	^
 
			_stringBuilderPool.Return(sb);
			^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
		}
		^
 
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,40
 
lea       rbp,[rsp+60]
 
xor       eax,eax
 
mov       [rbp-38],rax
 
mov       [rbp-28],rax
 
mov       [rbp-40],rsp
 
mov       rbx,rcx
 
cmp       qword ptr [rbx],0
 
je        near ptr M02_L10
 
mov       rcx,29BB4806B60
 
mov       rsi,[rcx]
 
mov       rcx,[rsi+20]
 
mov       [rbp-28],rcx
 
cmp       qword ptr [rbp-28],0
 
je        near ptr M02_L11
 
lea       rcx,[rsi+20]
 
mov       r8,[rbp-28]
 
xor       edx,edx
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
cmp       rax,[rbp-28]
 
jne       near ptr M02_L11
 
M02_L00
  
mov       rdi,[rbp-28]
 
M02_L01
  
xor       ecx,ecx
 
mov       [rbp-28],rcx
 
cmp       [rdi],dil
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FF9B317D0B0]; System.Text.StringBuilder.set_Length(Int32)
 
mov       [rbp-30],rdi
 
mov       r14,[rbx]
 
mov       r8,offset DotNetTips.Spargine.Core.BenchmarkTests.FastStringBuilderCounterBenchmark.g__action|18_0(System.Text.StringBuilder)
 
cmp       [r14+18],r8
 
jne       near ptr M02_L08
 
mov       rsi,[r14+8]
 
xor       ebx,ebx
 
mov       r8,[rsi+290]
 
cmp       dword ptr [r8+8],0
 
jle       near ptr M02_L09
 
M02_L02
  
mov       r8,[rsi+290]
 
cmp       ebx,[r8+8]
 
jae       short M02_L05
 
mov       ecx,ebx
 
mov       r8,[r8+rcx*8+10]
 
test      r8,r8
 
je        short M02_L04
 
lea       rdx,[r8+0C]
 
mov       r8d,[r8+8]
 
test      r8d,r8d
 
je        short M02_L04
 
mov       rcx,[rdi+8]
 
mov       eax,[rdi+18]
 
lea       r14d,[rax+r8]
 
cmp       r14d,[rcx+8]
 
ja        short M02_L07
 
cdqe
 
lea       rcx,[rcx+rax*2+10]
 
cmp       r8d,2
 
jle       short M02_L06
 
movsxd    r8,r8d
 
add       r8,r8
 
call      qword ptr [7FF9B2F25B78]; System.Buffer.Memmove(Byte ByRef, Byte ByRef, UIntPtr)
 
M02_L03
  
mov       [rdi+18],r14d
 
M02_L04
  
inc       ebx
 
mov       rcx,[rsi+290]
 
cmp       [rcx+8],ebx
 
jg        short M02_L02
 
jmp       short M02_L09
 
M02_L05
  
call      CORINFO_HELP_RNGCHKFAIL
 
M02_L06
  
movzx     eax,word ptr [rdx]
 
mov       [rcx],ax
 
cmp       r8d,2
 
jne       short M02_L03
 
movzx     r8d,word ptr [rdx+2]
 
mov       [rcx+2],r8w
 
jmp       short M02_L03
 
M02_L07
  
mov       rcx,rdi
 
call      qword ptr [7FF9B317D950]; System.Text.StringBuilder.AppendWithExpansion(Char ByRef, Int32)
 
jmp       short M02_L04
 
M02_L08
  
mov       rdx,rdi
 
mov       rcx,[r14+8]
 
call      qword ptr [r14+18]
 
M02_L09
  
mov       rcx,rdi
 
call      qword ptr [7FF9B3186198]; System.Text.StringBuilder.ToString()
 
mov       [rbp-38],rax
 
mov       rcx,rsp
 
call      M02_L13
 
nop
 
mov       rax,[rbp-38]
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L10
  
mov       rax,2DC46950008
 
add       rsp,40
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret
 
M02_L11
  
mov       rcx,[rsi+18]
 
lea       rdx,[rbp-28]
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35DEF28]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].TryDequeue(System.__Canon ByRef)
 
test      eax,eax
 
je        short M02_L12
 
add       rsi,2C
 
lock dec  dword ptr [rsi]
 
jmp       near ptr M02_L00
 
M02_L12
  
mov       rax,[rsi+8]
 
mov       rcx,[rax+8]
 
call      qword ptr [rax+18]
 
mov       rdi,rax
 
jmp       near ptr M02_L01
 
M02_L13
  
push      rbp
 
push      r14
 
push      rdi
 
push      rsi
 
push      rbx
 
sub       rsp,30
 
mov       rbp,[rcx+20]
 
mov       [rsp+20],rbp
 
lea       rbp,[rbp+60]
 
mov       rcx,29BB4806B60
 
mov       rbx,[rcx]
 
mov       rsi,[rbx+10]
 
mov       rcx,offset Microsoft.Extensions.ObjectPool.StringBuilderPooledObjectPolicy.Return(System.Text.StringBuilder)
 
cmp       [rsi+18],rcx
 
jne       short M02_L14
 
mov       rdi,[rbp-30]
 
mov       rcx,[rdi+8]
 
mov       ecx,[rcx+8]
 
add       ecx,[rdi+1C]
 
mov       rdx,[rsi+8]
 
cmp       ecx,[rdx+0C]
 
jg        short M02_L18
 
mov       rcx,rdi
 
xor       edx,edx
 
call      qword ptr [7FF9B317D0B0]; System.Text.StringBuilder.set_Length(Int32)
 
jmp       short M02_L15
 
M02_L14
  
mov       rdi,[rbp-30]
 
mov       rdx,rdi
 
mov       rcx,[rsi+8]
 
call      qword ptr [rsi+18]
 
test      eax,eax
 
je        short M02_L18
 
M02_L15
  
cmp       qword ptr [rbx+20],0
 
jne       short M02_L16
 
lea       rcx,[rbx+20]
 
mov       rdx,rdi
 
xor       r8d,r8d
 
call      System.Threading.Interlocked.CompareExchange(System.Object ByRef, System.Object, System.Object)
 
test      rax,rax
 
je        short M02_L18
 
M02_L16
  
lea       rcx,[rbx+2C]
 
mov       edx,1
 
lock xadd [rcx],edx
 
inc       edx
 
cmp       edx,[rbx+28]
 
jg        short M02_L17
 
mov       rcx,[rbx+18]
 
mov       rdx,rdi
 
cmp       [rcx],ecx
 
call      qword ptr [7FF9B35DEEF8]; System.Collections.Concurrent.ConcurrentQueue`1[[System.__Canon, System.Private.CoreLib]].Enqueue(System.__Canon)
 
jmp       short M02_L18
 
M02_L17
  
add       rbx,2C
 
lock dec  dword ptr [rbx]
 
M02_L18
  
add       rsp,30
 
pop       rbx
 
pop       rsi
 
pop       rdi
 
pop       r14
 
pop       rbp
 
ret